[Q] Unblock IMEI Number topic

My phone got stolen. I reported it to t-mobile and sent a text to the phone saying that it's being tracked and they better return it before cops find them. They returned it to a lost and found location where i picked it up but now the IMEI # is blocked because i reported it stolen... i called t-mobile telling them the story and that i needed my phone unblocked... tmobile tells me they don't block non-tmobile phones... i contacted oneplus one and they can't do anything about it. now i have a useless phone... is there anyway i can unblock this phone?!... Thanks for any help!!

P.S. oneplus one customer service sucks ass!!!!!!