I purchased a prepaid SIM kit at Wal-Mart and $40 prepaid service for use with my at&t compatible unlocked phone which I recently bought from Amazon expressly for the purpose of using while traveling in the US since my Canadian phone was not compatible. The phone make and model is Samsung Galaxy A13 5G SM A135U and I have double checked to ensure it is on AT&Ts list of compatible phones. I inserted the SIM and proceeded to the setup page, but at&t is not recognizing the IMEI when I complete that page and gives me an error message. I have checked and triple checked that the IMEI is correct. I can only use the phone at the hotel whe. I have data thru WiFi. My vacation is now half over. I can't call for help because the phone isn't working yet and the chat help just keeps sending me back to the registration/activation page. On my most recent attempt to activate I got the following error message:
GA701 : Oops, we hit a snag while activating your device. Come back later and try again.
I am beyond frustrated. Does anyone have any suggestions how to resolve?