I signed up with T-Mobile on Jan 11 2014, I Was told it wold take up to 8 weeks to get my E.T.F after I send my Final bill. I submitted my final bill to T-Mobile on Feb 3 2014. "Still no approval" as of march 9th. It also reads, ( if approved we'll mail out your reimbursement within 8 weeks of approval ) So What is the "REAL ANSWER" 8-12-16 weeks or what? Very disappointed with T-Mobile not having the answer to a simple question. Would not recommend a friend to switch to T-Mobile until all correct answers could be a given. If I did not turn in my Old android phone, I would have quit T-Mobile by now and went to another provider and payed to E.T.F. myself.
Also would have saved the cost of the new phones I got to switch.