Have you ported your number from a previous carrier to public? If so, sometimes this can happen when transferring your number from a previous carrier to a new one. The system has enforced a new security feature that prompts a text to the old sim card...
1) test the sim in the android again, but make sure that the network settings are correct. Too often when it comes to signal, on androids, sometimes its because the "APN" settings were not set to the proper details. When putting in sim cards, it will...
If you are in a city that has a WOW! Mobile retailer, they do have access to an activation support line (not for customer's) that can assist with the expiry issue if it truly is a glitch. My friend had this happen to her, and it took a day for the pa...