Domain Mapping refund

Hello, Further to my previous post, I have managed to successfully launch my WP site (after deleting the original one and rebuilding it!)

At the time I purchased Domain Mapping for ￡11 to link the WP site I’d created to https://thegoldenretouch.wordpress.com. This wasn’t what I wanted to achieve!

Since then, I used WP Clone to successfully copy my site from the development site at anthonygolden.co.uk to thegoldenretouch.co.uk. Everything works fine.

As a result, I’m pretty sure the Domain Mapping service I paid for is surplus to requirements but I can’t log in to the original thegoldenretouch.wordpress.com site to check this as it forwards to thegoldenretouch.

Can anyone advise whether I can get a refund for this Domain Mapping service and if so how I’d go about it?

Thanks in advance.