Why are Texts blocked?

[Beadgoddess]

Text messaging not working on iPhone 5s. I can type one in but it does not go to addressee.
Also when someone texts me, they get a "blocked" message of some sort.

I recently had my account hacked- numerous calls to Cuba and had to go through vzw to re initiate my account (they had suspended due to the suspicious calls).
Maybe text problem is linked somehow?
I turned phone off and on, but is there another way to restart phone and maybe this will all go away and it will work properly?

 

[Titillating]

Might want to contact Verizon. They may have put some kind of stop on certain services (I believe they are able to do that).