iMessage activation
Hi,
I have an iphone 6 which has worked great for years. All of a sudden I can not activate iMessage or facetime. I have done all the things that Apple recommend ie turn off and on, reboot the phone, check date and time, check OS version but still after about 2 minutes I get 'activation unsuccessful. I am getting SMS messages. It is funny that this started when my carrier put me on a new plan but they say it is nothing to do with that.
Any help greatly appreciated
Regards
Geoff
iPhone 6, iOS 12