Trade in

I traded in 2 Samsung phones in for 2 new Samsung s24 phones at an att store in February. I was also told in any condition and the new phones would be free. Both phones were operational and 3 days later I  turned the old ones in. I have waited the 3 months got my bill and no credits showed. I called att and was told my phones were not working so no credit and I will have to pay for both phones!! You can imagine my surprise, I  have been a loyal customer for over 20 years.  The rep said the back office which accepts the phones are voiding my offer of free phones. I stated I never would have traded in my phones if there was a chance of this happening. I also stated if this couldn't be fixed I wanted to send back the phones. I was told I couldn't do that either because my 3 month window to make a return had closed. This is REALLY POOR BUSINESS PRACTICE!!! Misrepresentation,  no one called to day there was an issue, I only find out because I called. I can't believe this is happening!! In the past att has always worked to ensure that as a customer I am treated with respect. This time when I asked for a got a manager, she basically said too bad this is what it is. I will be leaving att because of this!!