Let's get you sorted!
But first can you tell us what model your iPhone is and what version of iOS is running on it?
You can find this information via Settings > General > About > Version
I have an iPhone 6 and the version of iOS is 10.0.2
Okay, you make have already tried these, but here's a list of things to do:
Let us know how these steps go for you!
Did all of the above and it appears to be working now.
Thank you for your help! Happy New Years!
You're very welcome, and Happy New Year!