My phone isn't sending texts?

My iphone 6 won't send messages to a particular number (it works for all the rest) and i don't know what is happening. My reception is fine, what do you think is happening? Solutions?

That number could have blocked you or you could have blocked them if you go into settings and search blocked you can see if you blocked them and if not maybe it is a glitch and in that case just let your phone die or restart it.

Maybe you accidentally blocked them? Reset your phone. Maybe they blocked you?

Hi so get yourself another e-mal account.

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