Cancellation service N°1 in United States
Contract number:
To the attention of:
Cancellation Department – Costco
Costco Wholesale Member Services, PO Box 34331
98124 Seattle
Subject: Contract Cancellation – Certified Email Notification
Dear Sir or Madam,
I hereby notify you of my decision to terminate contract number relating to the Costco 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 notice period.
I kindly request that you take all necessary measures to:
– cease all billing from the effective date of cancellation;
– confirm in writing the proper receipt of this request;
– and, where applicable, send me the final statement or balance confirmation.
This cancellation is sent to you by certified email. The sending, timestamping and integrity of the content are established, making it equivalent proof meeting the requirements of electronic evidence. You therefore have all the necessary elements to process this cancellation properly, in accordance with the applicable principles regarding written notification and contractual freedom.
In accordance with the Consumer Rights Act 2015 and data protection regulations, I also request that you:
– delete all my personal data not necessary for your legal or accounting obligations;
– close any associated personal account;
– and confirm to me the effective deletion of data in accordance with applicable rights regarding privacy protection.
I retain a complete copy of this notification as well as proof of sending.
Yours sincerely,
12/01/2026
Cancellation Costco: Easy Method
What is Costco
Costco Wholesale is a membership-based warehouse club offering groceries, household goods, electronics, services and memberships through its Canadian warehouses and through Costco.ca. Members pay an annual fee for access to warehouse shopping, discounted bulk pricing and select services such as optical, pharmacy and hearing aids.
How to cancel Costco
Cancellation steps depend on what you are cancelling (an online order, grocery delivery placed through Instacart, a digital/platform purchase, or your Costco membership). Below are clear steps for the common channels. If an automated option is not available for your item, contact the appropriate support team for assistance.
- Costco.ca (web orders): If you placed an order on Costco.ca, use the self-serve cancel option within 1 hour of placing the order: sign in, go to "Orders & Purchases" and select "Cancel Order". If more than 1 hour has passed, or for digital goods, memberships, downloadable software or caskets, contact Costco customer support.
- Instacart grocery delivery: For grocery delivery placed via Instacart, cancel through the Instacart app or website before a shopper begins shopping to receive a full refund. If you cancel after shopping has begun or during delivery, a cancellation fee (up to $15) may apply and you will need to contact Instacart Care.
- Memberships (Gold Star, Business, Executive): For membership cancellations and refunds, visit any Costco membership desk in person for an immediate refund or contact Costco Member Services for instructions.
- App Store / Google Play purchases: These are typically handled through Apple or Google. Open the relevant platform's purchase history or support pages to request refunds per their policies.
- If automated or online cancel options are unavailable: contact Costco customer service (or Instacart/Apple/Google as appropriate) by phone or web chat. For formal membership cancellation by mail, send a signed cancellation request by registered mail to Costco Wholesale Member Services (see address at end).
What happens when you cancel
When you cancel a Costco order or service, the immediate effects depend on what was cancelled. A cancelled online order that is successfully stopped will not ship; orders already shipped or in transit may still be delivered and must be returned per the returns process. Membership cancellations typically stop the member benefits and access; refunds for memberships are generally processed when the cancellation is confirmed. Account data and transaction history are retained according to Costco's record-keeping practices and privacy policy - if you need data removed or further clarification, request details from Costco customer service.
Will I get a refund?
Membership fees (Gold Star, Business, Executive) are fully refundable at any time if you are dissatisfied; refunds are commonly issued on the spot at a membership desk. Most merchandise falls under Costco's satisfaction guarantee and is refundable, though online returns are often handled by return to a warehouse or through customer service. Notable exceptions and limits include electronics and major appliances (typically a 90‑day return window), diamonds ≥1 ct (verification required), alcohol and cigarettes where provincial rules apply, items with limited life expectancy (tires, batteries), custom installations, precious metals, Shop Cards/gift cards, airline or live-event tickets and downloadable digital goods. For Instacart grocery orders, you will receive a full refund if you cancel before the shopper begins; later cancellations may incur fees up to $15. Be aware customers report occasional delays in refund processing; if you do not see a refund within a reasonable time, follow up with customer service or your payment provider.
Costco plans and pricing
| Plan | Description | Annual fee |
|---|---|---|
| Gold Star | Standard individual membership with access to all Costco warehouses and online shopping. | Varies |
| Business | Designed for business owners and employees; includes business-oriented services and multiple card options. | Varies |
| Executive | Includes additional benefits such as an annual 2% reward on qualifying purchases and extra services. | Varies |
Your consumer rights in Canada
Under Canadian consumer protection laws, buyers are entitled to clear disclosure of terms, fair treatment and timely refunds where policies or provincial laws require them. Costco’s published membership and returns policies are generally consistent with these protections - membership refunds and a broad satisfaction guarantee are aligned with consumer expectations. If you encounter delayed refunds, inconsistent information, or unresolved service problems, you can contact provincial consumer protection offices, consider payment‑card dispute processes or pursue other remedies such as small claims court. This information is general; consult the appropriate provincial agency or a lawyer for specific legal advice.
Customer experiences
Customer feedback is mixed. Positive reports often note helpful in‑warehouse staff and strong service at specialty desks such as hearing aids or optical. Common negative experiences include slow or unreliable online deliveries, long wait times or unresponsive phone support, delays in membership refund processing, online order tracking problems (including lost or misdelivered packages) and occasional product quality issues such as spoiled produce or damaged collectible items. These patterns suggest good in‑store service for many members but potential friction with online and delivery channels.
Documentation checklist
- Membership card number and member name
- Order number(s) and purchase receipts (online or in‑store)
- Credit/debit card statement showing the charge (if available)
- Photo evidence of damaged or incorrect items
- Tracking numbers and delivery confirmations for shipped items
- Records of prior communications (dates, agent names, chat transcripts, emails)
- Valid government ID for in‑store membership refunds
Common mistakes
Customers commonly try to cancel an online order after the one‑hour self‑serve window on Costco.ca has closed without realizing the need to contact support immediately, which can delay or prevent cancellation. Another frequent error is cancelling a grocery delivery through Costco.ca when the order was placed via Instacart - Instacart must be contacted for cancellations and refunds in that channel. Expecting app‑store purchases to be handled by Costco is also a mistake; those refunds are controlled by Apple or Google. Other issues include failing to keep receipts or photos, returning items without original packaging when required, and not using registered mail for formal cancellation letters when proof of delivery is important.
Comparative recap
| Method | Refund | Difficulty |
|---|---|---|
| Costco.ca (web order, within 1 hour) | Full refund if cancelled within the 1‑hour self‑serve window; otherwise contact support. | Low (within window); Medium (after window) |
| Instacart (grocery delivery) | Full refund if cancelled before shopper begins; may incur up to $15 fee if cancelled after shopping starts. | Low (before shopping begins); Medium - High (after, needs Instacart Care) |
| In‑warehouse membership cancellation | Full refund available at any time. | Low (in person at membership desk) |
| App Store / Google Play purchases | Handled by platform (Apple/Google); refund policies vary. | Varies (handled via platform support) |
After cancelling
After you cancel, monitor your payment method for the refund and keep all documentation until the refund posts. If a refund is delayed, contact the channel you used to purchase (Costco customer service for warehouse or Costco.ca purchases, Instacart Care for grocery deliveries, or Apple/Google for in‑app purchases). If you need to escalate, contact your card issuer about a dispute or consumer protection in your province. Useful links: Costco membership and join information (Costco Join), Costco returns and refund information (Costco Returns), Costco Canada contact pages (Costco Contact), and Instacart help for order cancellations (Instacart Help).
Address
For formal membership cancellation letters sent by mail (use registered mail/raccomandata A/R for proof of delivery): Costco Wholesale Member Services, PO Box 34331, Seattle, WA 98124, USA