Gifted a Phone - Account Holder requested unlock on 6/28 - Still locked! HELP!

Please for the love of all things, please don't tell me I have to be the account holder.

This was an iPhone 13 purchased and paid IN FULL years ago but never unlocked.

The owner (my uncle) upgraded to the iPhone 16 and they still failed to unlock the iPhone 13 when transferring him to his new phone.

Now we are over 72 hours after the request to unlock was placed and no one will give me a status on why the phone is still locked because I am not the account holder. This phone is now legally mine, it is no longer is attached to any Xfinity services, and I just want to know when I can finally set this phone up with my carrier. 

For the love, can someone PLEASE just check the IMEI or something and tell me why this phone is not unlocked.