@7789849803 is a customer and not a Pubilc Mobile employee so they would be unable to check the settings of your account.
Once your SIM card is inserted select the automatic time and date, maybe try power-cycling the phone after selecting that option. If that still doesn't work and you have your information backed up you could try factory resetting the phone and seeing if that restores the clock to the actual time.
Sounds like the coding in the SIM card is messed up.
This should be verified by a PM rep but I'm thinking most likely you should order a new sim and then change sim card in the self serve account options