I only gave two stars due to the customer service I received when activity phone lines otherwise I would give a zero when it comes to customer service once you're a customer.
I tried to do the switcher program through ATT which worked out will from the beginning. I traded in two iPhones which I got one prepaid Visa card for. I waited one month after recovering my first gift card to get my next. ATT sent me a letter stating my phone was not a valid phone or that I didn't make my payments on time which voided the switcher offer. This could not be true because I got credit for the exact same phone a month earlier since both trade ins were iPhones and I made my payments on time or weeks early. I contacted ATT at the store 3 times to which I got snarky remarks and never ending promises to get call backs from the manager. The manager NEVER called me. I was always asked to repeat everything and submit documents even though the manager was emailed with the complete details and documents regarding my switcher credit.
In easier words, after SIX MONTHS of dealing with them and then spending hours on the phone with ATT I finally got my other credit. I highly suggest you use a different ATT store. They are terrible and no one wants to help or take ownership of an issue to help resolve it. The managers are just as bad and always give excuses as to why they can't do something or help me in store. It's ridiculous.