ISSUES WITH MY IPHONE INTERNET?

I'm having an issue with the cellular data of my 4S… No matter how much i turn it on, it won't work… Doesn't even show the 3G or E icon at the top… Problem is yesterday it was all working fine… I just bought an internet pack but still doen's work… Have already turned off, reboot, and it's not a signal problem, i tested another SIM… It has to do with the phone… ANY Help Please?

Call tech support for your service provider.
They can guide you through this issue.

Try doing a hard reset hold down the home button and the lock button until the phone powers itself off and powers itself back on if this doesn't resolve your issue call tech support by dialing 611

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