Old apple id keeps asking to update
Hi all - I've just updated my iPhone 8 to ios12. All went well except for a constant request to update my old apple id. I've been in to settings to check I'm using the new id and thats correct. The only place the old one comes up is in the Settings, under my account name as a suggestion to Update Apple ID Settings. It's driving me mad! Any hwlp appreciated thanks.
iPhone 8, iOS 12