Keep and Switch Fraud

I am also having problems getting my keep and switch rebate.  Transferred 2 iphone12 pro max phones from ATT to T-mobile. Paid off the remaining installment balances of about $500 each (&1000 total) to ATT prior to the transfer and submitted receipt and last ATT bill as requested. Checked status of the rebate 3 times and each time was told everything was approved and proceeding normally.  I would be informed soon that my virtual credit card would be available and how to use it… Nothing happened and when I again checked the rebate status it said "Denied". Last time I was denied and enquirer was told problem was corrected and I was even given a 12 character "tracking code" that I was told assured that my rebate was approved… same result about 2 weeks later. "denied". I am very angry,  I have wasted countless hours waiting on the phone and following detailed steps repeatedly in the application process. Still no success. T-mobile seems to be trying to literally steal $1000 from me. Considering turning this over to a lawyer and also suing for damages due to frustration and all the time lost when I could have been earning big money in my business.  Very angry and caution anyone else considering switching to T-mobile expecting they will actually follow through on the attractive "keep and switch" rebate. Buyer beware!!!!