Accidentally severed the connection between Android and account

Hello I got a false alarm this morning after changing SD card realized I had forgotten my pin number.
But when I went onto the Avast website to change my pin I accidentally disconnected my device from the service while the Anti-Theft protection was still running (yes, I do know I’m an idiot).

Now my phone is basically bricked because I can’t reset my pin from the phone, and can’t reset it from the Avast website either. Is there anyway to sort of roll this back or do I need to send my phone to get a complete scrub + reset from the manufacturer?

https://support.avast.com/article/127/ (Restore forgotten PIN)