My iPhone IMEI was blacklisted

After the update, the operator’s network does not turn on, they checked the SIM card and it works, we contacted the representative of Apple ID in Estonia and the representative of the network operator Elisa, it turned out that for some reason my imai code was blacklisted by the Dominican Republic, I want to ask what the **** is this? I bought a phone from the official representative office of Estonia, paid enough for the day when the iPhone 13 pro max came out, and now my phone is on the black list and I can’t use it because it was added in the Dominican Republic, I don’t go to any strange sites froud, I don’t take unknown numbers, now you tell me to buy a new phone for a good amount of money since this one can no longer be used. I am asking for help because I really love Apple products, but I will not allow them to deceive me and mistakenly block my imai code in another country where I am not I have never found it. It is very strange that some person does not carefully enter phone codes for the black list. I am asking for help or I will go to court for production and fraud

[Edited by Moderator]