Request to unlock the device and contact the expert without providing a solution

I submitted an unlocking request to the T-mobile expert on July 17th. After checking with the customer service expert, they said they met the unlocking requirements and were given a 72 hour waiting time to complete the submission. However, they have not unlocked it yet. I have contacted customer service multiple times and contacted online customer service on the website, all of which were asking to wait for 72 hours to fully unlock it, but none of them have been unlocked. After only chatting with Twitter for a few words, I will no longer reply to the message! Why didn't I submit an unlock request to you as a customer of T-mobile and not provide a solution! And my equipment meets the requirements and is clean! I am very angry! The following is the Chat log with t-mobile