So you did not unlock it. What you paid 80$ for? Who unlocked your phone? Or after unlock you tried tu upgrade software via SEUS?
If you payed 80$ for setool unlock via software patch, then yes, the unlocker robed you. For software patch unlock, you should't have to pay more then 15 $. Permanent unlock only with davinci or other servers that use emma card, price like 50 euros