Accidentally signed up to a professional account through the US platform

Hi everyone,

I accidentally signed up to Amazon Seller Central through the American version of the website rather than the UK version (I assumed that when stating I wanted to sell in the UK only during sign up, it would reflect the monthly payment accordingly).

I have been charged $47.99 rather than the £25 - I assume I need to speak to Amazon customer service over the phone, but has anyone encountered this problem before and is it an easy fix / will it cause delays for when I start posting listings?

Thanks!