Please unlock my phone!!! Weird policy!
I have bought a sim-free iphone 8plus from a retailer and it is supposed to be a gift to my dad. To make sure it works properly, I used my ATT prepaid sim card to activate it for a check. However, it was found that the iphone has been locked by ATT when my father tried to use it with his sim card. More importantly, we are currently outside the US for 2 years so that my dad cannot use the phone for a really long time. I called ATT and the people from ATT customer service said I have to use the iphone with my card for 6 months in order to unlock it. They also claimed that it is a policy. I don't think anyone ever told me ATT will lock the non-ATT version iphone for 6 months once I use their prepaid sim card. Moreover, my prepaid card will be expired soon and cannot be used for 6 months.Also, I totally don't think this policy is reasonable since I didn't bought the iphone from ATT and it is a sim-free iphone. Please is anyone can help me out? Otherwise, we have to carry a non-working iphone outside the US with no signal for 2 years!
Thank you very much!