Why can't I text more than 4 letters to anybody in my NOKIA LUMIA 630?

[WPCentral Question]

I tried texting some of my friends from the past two days and I am not able to text more than 4 letters at a time.Why is it so??
I mean it is so frustrating.

 

[xandros9]

That's ridiculous, can you elaborate whats happening?

Is the phone not allowing more than 4 characters to be typed?
Is the character counter out of 4?

That's so weird I've never heard of it before.

EDIT: what's your carrier?