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Cancellation service #1 in Canada
Amazon Redshift is a fully managed, petabyte-scale data warehousing service in the AWS ecosystem. It is designed for analytical workloads and integrates with many AWS services and third-party tools to support large-scale querying, compression, and managed storage.
Note: In Redshift, the term CANCEL specifically refers to cancelling a running database query or session; it is a technical operation (query/session level) and does not mean cancelling your AWS subscription or billing for the service.
When you cancel a running query, only that query/session ends; other queries and cluster operations remain active. When you delete a cluster (the usual way to stop ongoing charges for provisioned Redshift), compute resources are terminated and you will no longer be billed for the cluster instance hours.
Deleting a cluster without taking a final snapshot can cause irreversible data loss. Snapshots and backups may remain and can continue to incur storage charges until they are deleted or exported. Some retained items (manual snapshots, automated snapshots retained by your snapshot retention settings) will continue to exist and may incur fees.
AWS does not provide automatic monetary refunds for Amazon Redshift downtime or expected billing; service interruptions and performance failures are addressed under the AWS service-level terms via Service Credits, not direct cash refunds. Claims for Service Credits must be submitted according to the Redshift SLA and usually require documentation of the incident and timing.
Service Credit claims typically must be filed within two billing cycles of the incident and include the required details to validate the claim. Unauthorized or improper usage is not eligible for refund; only Service Credits are provided under the SLA when its conditions are met. For detailed SLA steps and submission rules see the Redshift SLA page: Amazon Redshift Service Level Agreement.
| Plan | Price (approx. CAD) | Period | Features |
|---|---|---|---|
| ra3.large (on-demand) | approx. C$0.95/hour | Hourly | RA3 node with managed storage (ca-central-1 region, estimate) |
| ra3.xlplus (on-demand) | approx. C$1.90/hour | Hourly | RA3 node with managed storage (ca-central-1 region, estimate) |
| ra3.4xlarge (on-demand) | approx. C$5.71/hour | Hourly | RA3 node with managed storage (ca-central-1 region, estimate) |
| ra3.16xlarge (on-demand) | approx. C$22.83/hour | Hourly | RA3 node with managed storage (ca-central-1 region, estimate) |
These are approximate CAD conversions of USD on-demand prices (third-party tracker, May 2025) using an estimated exchange rate. For exact CAD pricing, region-specific taxes, reserved instances, or savings plans, use the AWS Pricing Calculator or contact AWS Sales.
Amazon Redshift subscriptions and use are governed by AWS agreements and the Redshift SLA; there is no general statutory “14-day refund right” specific to this cloud service. For typical cloud service purchases, cancellation and refund terms are set by the contract with AWS rather than a consumer cooling-off period.
If you believe you are entitled to compensation under the SLA, follow the SLA claim procedure promptly (claims are normally required within two billing cycles). For alleged unauthorized charges, contact AWS Billing Support immediately and preserve supporting records (billing invoices, timestamps, and case IDs).
Users in Canada and elsewhere commonly praise Redshift for multi-datatype support, strong compression and performance, and deep integration with the AWS ecosystem; Capterra reviewers give an average rating around 4.4/5 and GetApp reviewers call it fast and scalable.
Common criticisms include limits on concurrency, less elasticity compared with some competitors (e.g., Snowflake or BigQuery), and the need for experienced DBAs to configure and optimize clusters. Some reviewers also cite complexity and potentially higher cost for certain workloads.
Deleting a cluster without creating a final snapshot is a frequent and irreversible mistake; always take a final manual snapshot if you may need the data later. Another common error is assuming deleting a cluster immediately removes all charges - snapshots and exported data can still incur storage fees if not cleaned up.
Users sometimes attempt to use the CANCEL SQL command expecting account- or subscription-level cancellation; remember that CANCEL only targets running queries or sessions. Also, many expect cash refunds for downtime - AWS provides Service Credits under SLA criteria, not monetary refunds in most cases, so missing the SLA claim window (usually two billing cycles) can forfeit relief.
| Method | Refund | Difficulty |
|---|---|---|
| Cancel a running query (CANCEL) | No monetary refund; operation-level only | Low - requires appropriate Redshift permissions |
| Delete cluster (stop billing for compute) | No direct cash refund; Service Credits only under SLA | Medium - plan snapshots and data export before deletion |
| File SLA/Billing support claim | Service Credits possible if SLA conditions met | Medium - High - requires documentation and timely filing |
After you cancel queries or delete a cluster, export or secure any final logs and snapshots you need, and verify billing to confirm charges have stopped. If you plan to remove all traces, delete manual snapshots, automated snapshot exports, and any ancillary S3 exports or snapshots that could incur storage fees.
Useful resources: Redshift documentation (Amazon Redshift Documentation), CANCEL command docs (CANCEL), Redshift SLA (SLA), and AWS Support (Support) and Billing Console (Billing Console).
For registered notices or mailed correspondence, you can send documents to:
Amazon Web Services Canada, Inc., 120 Bremner Blvd, 26th Floor, Toronto, ON, M5J 0A8, Canada.
For traceability, it is recommended to send any formal cancellation letter via registered mail with return receipt (A/R) to confirm delivery and preserve proof of receipt.
Already sent a letter? Enter its tracking number to see its proof of dispatch and certified timestamp.
Written by Evelyn Wright
Former postal advisor · 5 years experience
Former postal-services advisor and e-signature specialist, I have been writing for Postclic for 5 years to demystify legally binding mail for everyday users.