Found out my iphone was att-locked after leaving the US. I no longer have access to the phone number associated.
In May, I bought Iphone SE at an AT&T store in Boston. I was going to buy it for its regular price. But an ATT store worker convinced me to do it on a different deal that included a month of unlimited plan, which overall cost little less. He explained me that it was only an incentive to make me to unlimited plan user long term. I didn't use that number at all.
In mid October, because of family emergency, I left the US to Mongolia and wouldn't come back at least for two years. Is there any way that I can unlock the phone so that I can use it here?
I really love my phone and it (Edited per community guidelines) that it was locked.