[mmvasq]

Once you have lived through reporting to a telco you have been dealing with fraud - you learn the procedures are in a scripted loop, everywhere. The answer will probably be go to store get new sim and never reach conclusion it was swapped for people who do not investigate their situation. I haven’t dealt with sim swapping yet some pretty heinous organized crime now and the folks are nice yet you will never walk away knowing the cause or source of an incident.