PROOF OF PURCHASE
I purchased an iphone from at&t back in july of 2018. I honestly cannot recall whether this phone was purchased online or at the retail store in my hometown. I no longer carry an account with at&t, but I am 100% the phone is paid off and is mine free and clear, however I don’t know how to go about obtaining a proof of purchase from 4 years ago from an account that has since been closed. It’s the only possible way to have it removed and unlocked from my old icloud acct. which I also no longer have access to due to my phone being stolen a year or so ago. help!