Hi there,

Sorry if I have to censor your private email. This is a public forum, so it's better not to post private information like an email.

Also, it seems that you've fallen into a scam. Please refrain from following somebody's advice, especially from unofficial platform, in the meantime. See: Avoid and report Mozilla tech support scams. To follow up on your original question, let me try to see if we can have a Danish-speaking person to help you here.

Hej Hans Jürgen

Firefox har ikke noget med de uberettigede hævninger at gøre. Derfor kan vi ikke hjælpe dig i dette forum. Jeg synes, at du skal kontakte din bank.

Thanks, Joergen!

I was told that it's not actually a Firefox issue, so I'll mark Joergen's reply as a solution.