Text Messages

I seem to have a problem with the texting function on the M8. It seems as if no one receives any texts that i send. There have been times when i have called someone, then texted that person on the exact same number, yet they dont receive my texts, ever. Is it my service or my phone?

text = sms?
Try to set up the "sms center"

Maybe you have this problem because didn't introduced the number of the SMS... a few weeks ago, I had same problem, but later of introduce the SMS Center I haven't lost more SMS

what firmware?
what format of phone-numbers are you using?
what says the phone - sending succesfull?

i am using firmware 0.9.2.6

And when you mean format of number, i just put area code and then phone number. For example 555-555-5555

And yes each time i send a text it does say sending successful

Also, what is the sms center?

Messages->Settings->Sms center
Short message service center - Wikipedia, the free encyclopedia

Ha! i still have same problem. I still can't find solution, or sms center