Apple Music stuck in wrong region

Hi,

My Apple Music is stuck on the Japan region. I recently changed from JP to UK due to change of address and hence payment method.

However, even though my JP subscription was refunded, even once I bought Apple Music with my UK credit card, everything is stuck on Japan region and it wont let me play any tracks.

How do I get Apple Music to recognise my valid UK subscription? (Apple ID is set on United Kingdom btw)

thanks

Rohan