I purchased an unlocked sprint note 8 on eBay with the intention of switching over to Sprint’s free unlimited year plan. However, when I put in the imei and my phone number, I get a message stating that there is an outstanding balance on the phone. I know that the seller paid off the phone and everywhere online where I put in the imei number states that it is clean. I am also able to use it with my current carrier with no problem, which I doubt I would be able to do if the phone was not paid off. Can anyone please help me with this issue? After reading some threads online, it appears there may be an ownership flag problem.