MOBILE DEVICE PLAN PAYOUT: 8/14 - 9/6/24 promotion

I switched from my old service provider to xfinity based on the promotion you were having.  One of the promotional items was that xfinity would pay off the rest of your current cell phone, up to $500, if you do the switch.  I did the switch on 8/26 and sent to xfinity the payoff amount for my cell phone from my old provider. Xfinity confirmed they got the necessary documentation on 9/5.  It's currently 10/28, and despite several reach out to their customer support division, I still have not received my rebate card yet.  Customer support has giving me the run-around, confirming they have the necessary documentation but there is a delay in their payout.  The agent told me today that that I have to wait another 2-4 weeks for payments.  That meant I have to shell out of my own pockets, the balance due on the cell phone that I had to pay off to my previous provider. 

Well the terms were I have to be on their program for 30 days and I am well over that timeframe. I am seriously considering filing a FCC complaint as L1 Customer service support is totally useless.  I have been an Xfinity cable customer for almost 30 years and I can't believe this is how they treat a long time customer.  Is anyone else having this issue with the receipt of the rebate cards?