iMessage won't activate on my iPhone 5c
On my iPhone 5c (ios 8.2), I have tried to turn on iMessage but it just says "Waiting for activation". It has been like this for hours with no change. I have tried to press the "Use your Apple ID for iMessage but when I type it in it just says it failed and that I should check my internet connection. I have done everything I could think of, including hard resetting my whole phone and starting from scratch. Does anyone have any suggestions?
iPhone 5c, iOS 8.2