I wanna refund the subscription… can you help me with that?

See this Apple article:

Request a refund for apps or content that you bought from Apple.

https://support.apple.com/en-gb/HT204084

>>  Find answers to your questions about your purchases history, subscriptions, payments, billing and request a refund.

If you read that article, and scroll down, you can check the status of your refund request.

Click on it and it will take you to this Apple article:

https://support.apple.com/en-gb/HT210904

Scroll down