I spoke to somebody from eBay today about the situation with the token as jaclynhyde recommended that I do and I created a new token along with combining my PayPal and eBay accounts which I thought I had done but it seems I hadn't as I hadn't pressed a certain button so hopefully everything will be hunky-dory and I can sell my items on eBay UK...
In the meantime, I want to thank everybody that's given me advice and support here as I was worried that I was going to go even more balder than I am already! *LOL*