Hi
Welcome to the Deezer user community in English

If you pay for Deezer as part of a package from your mobile operator or another third-party payment service please contact them to clarify the cancellation of your subscription.

For cancellation issues contracted directly with Deezer or payment refunds and account type changes, you need to contact Deezer support for help.

The Deezer online chat is very good, the chat entrance is at the bottom right.
https://support.deezer.com/hc/en-gb

Or via the Deezer contact form
https://support.deezer.com/hc/en-gb/requests/new

Greetings and keep the music flowing

I understand your frustration. If you're referring to a purchase or service, it's best to reach out directly to the provider's customer support for assistance with a refund request. Make sure to have relevant details (receipt, order number, etc.) to speed up the process.