Just received a call today from a debt collector saying I owed money to sprint. Apparently, when T-mobile payed my ETF's and transferred my number, there was a fee from sprint to move my number to Tmo. Is this true? Is anyone else receiving the same type of calls/notice? It seems odd that Tmo would pay out the contract and move my number but not mention that I had to pay for that transfer. I am going to call both wireless carriers but, I wanted to see if anyone had similar experiences. Also, how was it resolved?