Xfinity Mobile Trade-in Scam?

I switched to Xfinity Mobile after agreeing to a trade-in deal for my Pixel 6a. The deal promised a $550 credit over 24 months and a reduced price for the Pixel 9. Xfinity verified my phone's eligibility and sent a prepaid shipping label.

After shipping my phone and activating the new one, Xfinity has been giving me the runaround about the promised credit. They've offered various excuses, including inspection delays and system errors. However, they've recently(after 3 months) claimed my phone wasn't eligible and has been recycled, meaning no credit will be applied.

This seems like a bait-and-switch tactic. If my phone wasn't eligible, why did Xfinity send me a pre-paid shipping label in the first place? This has caused significant inconvenience and financial loss.

Be cautious when considering similar deals from Xfinity Mobile.