Ripped off of 180$?

I bought a Motorola g7 supra from cricket online, and it had a light crack on the bottom of the screen, so I sent it back and bought a couple others, one for me and one for my dad. they apparently received the phone, but are refusing to refund my 180$. how do I get my refund? I've been at this for over a month now and I feel like they stole $180 from me even after they said they would refund it after they received the phone. I supplied the tracking number, original card used to make the transaction, I still have the bank statement, everything. and they are playing dumb everytime I call customer service and sending me around from one person to another and giving me different stories. I figured this would be my last resort to see if someone could help me out before I take this to the better business bureau and then small claims court