unlocked phone is now locked in Italy
I bought an unlocked iPhone 7 plus at Best Buy in the United States. They helped me put in a Tracfone SIM. I use pay as you go, no contract in the US. This was less than a year ago. Now I am in Italy and wanted to use the same SIM I used last year with a different phone. However I needed a smaller SIM. I went to the Vodafone store and they inserted the new SIM. However my phone now says that it is locked. Tracfone says they would not lock it. Apple tells me to contact Tracfone. I never used AT&T. Help.
iPhone 7 Plus, 12