Tracfone Defective phone - no refund issued. Internet

I ordered a Samsung phone and it came with the back to a ZTE phone. Tracfone would not send the correct back but inisted I return the whole thing for a replacement, leaving me without my cell phone for an estimated two weeks. So I told them I'd just go buy another phone that day, and that would mean I did not have to go without service. They told me I'd get a refund. It's been a month and no refund. Also, since I had to pay them for the phone BEFORE they would ship it to me (standard procedure obviously), why don't they have to pay me back BEFORE I ship it to them? Next time I want a phone from them how about I tell them I want the phone sent now, but will pay them over a month later? I don't think that would fly, so then why are they not refunding? It seems once TRACFONE has your money, they feel no obliigation to give you anything for it. Good for their profits, not so good for my cell service or finances. Pretty neat scam.