iPhone XR - Face ID stopped working, phone can no longer charge

I've seen similar threads to this, but no resolutions.

In summary:

1) FaceID would suddenly stop working

2) Used passcode to unlock

3) From then on, the phone will not longer charge

4) Tried resetting FaceID, but the scanner can't pick up

5) Tried resetting all settings - did not work

6) Error upon restart states that "FaceID is not available. Try setting up FaceID later"

The first time this happened, iStore stated it's "component failure" - the phone got sent in for repairs by insurance, and their repair center claimed it was due to "the port being dirty" which they then claimed to have cleaned.

The phone worked for two weeks, but the exact same issue has happened now.

The first time you could say the FaceID/Charging issues was a coincidence but it's pretty clear there's some kind of causation!