December on 12/07/2024. There was a promotion for an Amazon TV

HELO , I signed up online with T Mobile at the beginning of December on 12/07/2024. There was a promotion for an Amazon TV after a certain period of time. I'm still waiting. I called customer service today to see where the TV was and conveniently if they had a promotion for me, but they told me that I am not eligible. I feel that I have been a loyal customer for 5 months, maybe it's time to change providers? I have my tracking ID and my submission date, HELP PLEASE.