Why I can't receive but not send text messages?

[AC Question]

Why I can't receive but can send text messages?

Samsung Galaxy S III GT-I9305
I could send and receive text messages before and after few days I can no longer receive text messages but I can send them. Tested with 2 different phones with 2 different SIM cards but I didn't receive messages from either one.

I don't have any messaging related apps installed apart from Skype which I haven't launched after installation of it.

 

[B. Diddy]

Re: Why I can't receive but can send text messages?

Welcome to Android Central! Have you discussed this with your carrier yet?

 

[Shadowy0]

Re: Why I can't receive but can send text messages?

After factory reset it worked, after restoring backup it didn't work again...

I did another factory reset and only restored some of the backup (no settings) and now, I think, I can receive text messages again.

It's not the apps what breaks it and I haven't changed any text message related settings myself..
What could it be?