Best telecommunications service provider in Atlanta, Georgia (GA) 2024

I purchased a prepaid phone card back in the 1990s AT&T has done away with the card I still have money on the card. I am unable to call AT&T as I have no number with them. I talked to Sunday Jones on June 2nd and she lied she didn't call me back the next day as she promised. The 1-800 I used to call for customer service referred me to a website that I can't get NO information from. AT&T SUCKS THAT'S WHY I LEFT THEM IN MAY 2019!! ~BOBBI