My T-Mobile Tap just came in the mail today, and I put in my battery and the SIM Card, turned it on, then I activated it on the T-Mobile website. It said it would send me a text message when it is completely activated, and it's been about 10-15 minutes since I activated it. When I turn the phone on, it says, "SIM Card missing... Emergency call only" even though I have the SIM card in the phone. What do I do?