Unable to change region to Europe UK

Hi, I created my account in 2013 and my region was set to Europe - Switzerland. I am now unable to switch to Europe - UK as there is no option for this in the change region setting.

Any help would be greatly appreciated!

That is not a region change, since the region (EMEA) stays the same. You are trying to change your Division. Open a support ticket with VATUK, they will be able to help you with that.