Music unavailable since returning to the UK from Greece

Since returning to the UK from a holiday , I'm unable to play several apple music tracks on both my iPhone and iPad which went with me - message says currently unavailable in your country. The unplayable tracks are completely different on the iPad and iPhone and my mac - which remained in the UK - is still able to play them all. I've tried restarting , I've checked location settings and I've no idea what to try next. Both the iPhone and iPad know they are in the UK again as they will now play BBC content which they wouldn't when in Greece. I've never had this problem before. Any help much appreciated.