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I hereby notify you of my decision to terminate the contract relating to the Lumen service.
This notification constitutes a firm, clear and unequivocal intention to cancel the contract, effective at the earliest possible date or in accordance with the applicable contractual period.
Please take all necessary measures to:
– cease all billing from the effective date of cancellation;
– confirm in writing the proper processing of this request;
– and, if applicable, send me the final statement or balance confirmation.
This cancellation is addressed to you by certified e-mail. The sending, timestamping and content integrity are established, making it a probative document meeting electronic proof requirements. You therefore have all the necessary elements to proceed with regular processing of this cancellation, in accordance with applicable principles regarding written notification and contractual freedom.
In accordance with personal data protection rules, I also request:
– deletion of all my data not necessary for your legal or accounting obligations;
– closure of any associated personal account;
– and confirmation of actual data deletion according to applicable privacy rights.
I retain a complete copy of this notification as well as proof of sending.
Important warning regarding service limitations
In the interest of transparency and prevention, it is essential to recall the inherent limitations of any dematerialized sending service, even when timestamped, tracked and certified. Guarantees relate to sending and technical proof, but never to the recipient's behavior, diligence or decisions.
Please note, Postclic cannot:
- guarantee that the recipient receives, opens or becomes aware of your e-mail.
- guarantee that the recipient processes, accepts or executes your request.
- guarantee the accuracy or completeness of content written by the user.
- guarantee the validity of an incorrect or outdated address.
- prevent the recipient from contesting the legal scope of the mail.
Cancellation Lumen: Step-by-Step Guide
What is Lumen
Overview
Lumen is a health and wellness product that combines a handheld breath-analysis device with a subscription app to measure metabolism and guide nutrition and coaching.
The service uses breath sampling to estimate whether your body is burning fats or carbs and provides meal and coaching recommendations via the app.
How it’s delivered
The product is sold as a device bundled with a period of premium membership, or with ongoing subscription options for continued app features.
Hardware is purchased once in most packages, while premium access continues via a recurring subscription if you choose to keep it after the included period.
How to cancel Lumen
Check how you were billed
Identify whether your membership is billed directly by Lumen, through Apple App Store, or through Google Play.
Your cancellation route depends on which billing channel processed your subscription.
Step-by-step cancellation
- If billed through Apple App Store: cancel the subscription in your Apple ID > Subscriptions.
- If billed through Google Play: cancel via Google Play Store > Subscriptions on your Android device.
- If billed directly by Lumen: open the Lumen app or your Lumen account settings, go to Membership or Subscription, and select Cancel or Manage Subscription.
- If you cannot cancel via the app or store, contact Lumen support and provide your order details and account email. Refer to Lumen’s terms for contact points and policies: Lumen Terms of Use.
- Always keep confirmation emails or screenshots of cancellation actions until your billing cycle ends and your account reflects the change.
What happens when you cancel
Access and features
When you cancel, access to premium features generally continues until the end of the paid billing period you already paid for.
After that date, premium features are typically disabled unless you resubscribe.
Account and data
Your account and historical data usually remain associated with your email unless you request deletion per the provider’s privacy policy.
Check Lumen’s terms for details about data retention and requests related to account deletion: Lumen Terms of Use.
Will I get a refund?
General policy
Lumen’s standard terms state refunds are not automatic and depend on how and when you purchased the membership or device.
Subscriptions that renew are often non-refundable for the period already used, but specific circumstances and store policies may differ.
Exceptions and next steps
- If you purchased via Apple or Google, you may need to request a refund through their support channels according to their policies.
- If you believe you qualify for a refund (billing error, duplicate charge, or other valid reason), contact Lumen support with receipts and details; reference their terms: Lumen Terms of Use.
- Keep documentation of charges and communications; these are often required to evaluate refund requests.
Lumen plans and pricing
Summary of available bundles
The following table lists the pricing options converted to Singapore dollars as provided in verified data.
Prices reflect device bundles and subscription continuation offers.
| Plan | Price | Period | Features |
|---|---|---|---|
| Metabolism Transformation (device + 12‑month premium membership) | S$410.00 | One‑off purchase (includes 12 months membership) | Lumen device + 12 months of premium app membership (nutrition plans, AI coaching, full features) |
| Metabolism Booster (device + 1‑month trial) | S$275.00 | One‑off purchase (includes 1 month trial) | Lumen device + 1 month premium trial; thereafter subscription applies |
| Subscription continuation (individual) | S$26.00/month or S$220.00/year | Monthly / Annual | Continued access to premium features after initial membership |
| Duo Plan - subscription (two users) | S$50.00/month or S$315.00/year | Monthly / Annual | Allows two profiles to share device with separate premium access |
Your consumer rights in Singapore
Key protections
In Singapore, consumers are protected against unfair practices and misrepresentation under local consumer protection laws.
If a product or service differs materially from what was promised, you can raise a dispute with local consumer authorities or seek remedies.
Practical steps locally
- Keep all receipts, order confirmations, and communications as evidence.
- If you cannot resolve a billing or refund dispute with Lumen, consider contacting the Consumers Association of Singapore (CASE) or pursuing small claims procedures.
- Check the seller’s published terms and the payment platform’s dispute/chargeback options if you paid by card.
Customer experiences
Positive feedback
Many users praise Lumen’s device concept and personalised nutrition guidance, noting improvements in daily tracking and awareness of metabolic state.
Device ease-of-use and app coaching are often mentioned as strengths in reviews.
Common complaints
Some users report issues with subscription management, unexpected renewals, or difficulties obtaining refunds depending on how the subscription was billed.
For community reviews and trends, see user feedback on review pages such as: Lumen on Trustpilot.
Documentation checklist
Before you contact support
- Order confirmation or receipt (showing date and amount).
- Account email used for Lumen app or website.
- Proof of payment method (card statement, App Store/Play Store receipt).
- Device serial number or order number if applicable.
- Screenshots of subscription settings or cancellation attempts.
What to include in a refund request
- Clear description of the issue and desired outcome (refund, cancellation confirmation, account deletion).
- Relevant dates: purchase date, renewal date, cancellation attempt date.
- Attach receipts and any supporting screenshots or correspondence.
Common mistakes
Missing the billing source
A frequent error is cancelling inside the Lumen app when the subscription is billed through Apple or Google; this does not stop store-managed renewals.
Always confirm the billing source in your account or receipt before cancelling.
Waiting too late or no confirmation
Many users assume cancellation is instant; if you cancel close to renewal you may still be charged for the next cycle.
Always save a cancellation confirmation and check the billing statement the next cycle to ensure the charge stopped.
Comparative recap
Quick comparison
The table below summarises which plan suits common needs and the immediate price reference from verified data.
Use this to decide whether to cancel, downgrade, or keep a subscription after a bundled period ends.
| Plan | Best for | Price | Period |
|---|---|---|---|
| Metabolism Transformation | Users who want 1 year of coaching included | S$410.00 | One‑off purchase (includes 12 months membership) |
| Metabolism Booster | Users who want a lower upfront cost with a trial month | S$275.00 | One‑off purchase (includes 1 month trial) |
| Subscription continuation (individual) | Users who keep using premium features after initial period | S$26.00/month or S$220.00/year | Monthly / Annual |
| Duo Plan - subscription | Two users sharing one device with separate profiles | S$50.00/month or S$315.00/year | Monthly / Annual |
After cancelling
What to do immediately
- Save cancellation confirmation and check the next billing statement for any unexpected charges.
- If you used Apple or Google, verify cancellation in the corresponding store app and in your email receipts.
Where to get more help
For official terms, refund and contact information, consult Lumen’s published terms: Lumen Terms of Use.
For step-by-step cancellation guidance from a third-party summary, see: How to cancel Lumen (guide).
Address
Singapore office
Asia Pacific Headquarters / Office location:
3 Irving Road, #06‑01 Tai Seng Centre, Singapore 369522
Contacting support
If you need formal support or to reference policies, start with Lumen’s Terms of Use page which includes contact and legal details: Lumen Terms of Use.
Keep all documentation when contacting support or raising a dispute with local consumer bodies.