How do I get refunded for an overcharged subscription

See: Request a refund for apps or content that you bought from Apple - Apple Support

How do I get my money back that was taking off of my card ?

Click on the web link that Foxfifth has provided in his post. The link is blue in color. Click on it to get the information that you are looking for.

Axel F.

I’ve already done this and still didn’t get my payment back