SMS code 8, calls don't work either

Hi,

Only mobile data works correctly for my account. SMS gives me error code 8 and calls tell me the service isn't available and to contact support at 611. I have rebooted my phone multiple times and I have followed every step in this guide: https://fizz.ca/en/faq/i-cant-send-or-receive-text-messages.

Recently, a payment failed and my services were abruptly cut off. However, the payment passed 4 days ago and my services should be working now. Also, both SMS and voice are unlimited in my plan (I have a legacy plan).

I run Android 11 on pixel xl 3.

How do I get my voice/sms services back?

Thanks!