Bad service

I have app****, and was approved, the day collecting my phone the 2 ladies assisting me at Savannah mall, was up and down on a tablet, the one lady send the second lady to collect the phone I have decided on, when they opened the phone the one lady asked if the second lady informed me about the first payment going off within 7 days, I said NO, both were in shocked and told me that they can't take the phone back and I have to take it, I was in shock! Now I'm sitting with a phone that I can't used, because it is blocked, can I take the phone back? Where can I report the Payjoy workers? It's really unprofessional!