Can't Unlock iPhone X Purchased At Full Price

I bought an iPhone X at a retail store just over a week ago and was told I was able to unlock my phone right away since it is a post paid device. However my att account was automatically loaded into the iPhone sim card at the store and now whenever I make a request to unlock the phone it gets denied since because "my device hasn't been active for 6 months". I am leaving the country in a week and I am 100% unwilling to pay another 300 dollars just to have my phone unlocked when I already spent $1000 on the phone. I even asked the customer support over 611 to elevate my request but they seemed to be unable to properly convey that the device is post paid.

This is the email I received back

Thank you for contacting AT&T Customer Care about unlocking your AT&T Mobile device:
CASE: **********_*********
IMEI: ******************************

Thank you for contacting AT&T about unlocking your mobile device.

Unfortunately, your unlock request was denied because:

• You haven’t completed 6 months of paid service as a Prepaid/GoPhone® customer.

You can submit a new request once you complete 6 months of paid service.

Thank you for your business. For other questions about our AT&T wireless service or other Mobile devices, please visit att.com

Sincerely,
AT&T Customer Care Team

I have been to the retail store 4 times already and they sent me back to the phone customer care every single time. And the phone support seems clueless and are of no help as they keep on assuming my phone is a prepaid device