Activation Unsuccessful error all of a sudden when trying to use iMessage and FaceTime

[EWYN2]

I am getting the "Activation Unsuccessful" error all of a sudden when trying to use iMessage and FaceTime on my up to date as possible iPhone 8+

I have checked the forum and CHAT GPT for a solution and nothing seems to be working.

How do I contact someone at TELUS (PUBLIC MOBILE) to see if International texts haven't suddenly been blocked.  Apple uses a hidden activation text to the UK (+44) according to A.I.

cheers.

[hTideGnow · Accepted solution]

hi @EWYN2 

go to Settings and remove the phone number first

reboot phone, and go back Settings to enter the phone number back and wait for iMessage activation to complete