promo question

Hello, my name is Nicholas and I'm a new T mobile customer. I just ordered the new 5g modem for my house about a month ago and it's been working great. 
I ordered my new account and modem device plan on Black Friday and it just so happen to come with a tv. But my problem is, I don't have anything proving or saying that my order came with a new tv. I remember reading that I needed to have my new account open for 60 days I believe before they would send me a tv but I want to reassure my self of that and I can't find any info on it. Has anyone else experienced this and can anyone confirm that they really got the tv. I worry they won't believe me when I ask customer support because I don't have any documentation about the promotion tv. Gracias