Make sure that you copy EXACTLY the address they have registered for you (in account info?), that was my problem, they didn't match and it threw it same errors. Once I copied it exactly the same (even with caps) it started working immediately.
Had the exact same issue with iPhone 11 coming from Bell. Wen to a Rogers store, they tried escalating to Rogers tech support. Same nonsense answer: if it's not a Rogers phone it is not supported. The fix was to go into the MyRogers app and validate ...
