So in short:
My friend sent me a text
I never got it, but they got a response (that was not from me) that said "Sorry you have the wrong number".
My friend called me to see what the deal was. I said I never got your text in the first place.
Then I sent a text to them, they replied back and we were able to text from then on. They sent a screen shot of their text to me showing the message I never got and the strange reply of "Sorry you have the wrong number".
We had no history of texts before this (it had been a few years since we last chatted). What could possibly cause this to happen?
I'm here to help with your message concern, let's look into this. Which message application are you using? Please tell me more.