messaging problem to certain contacts ):

[WavyDavy1]

If I get a text from certain contacts it comes from a different number without a reply box, I have to open the contact and reply ?

[WavyDavy1]

I have already disabled iMessage and the phones they have are Xperia as well

[CameronT]

Does the same thing happen in safe mode?

[WavyDavy1]

Yes still does it.

[CameronT]

I am really not sure why this is happening here @WavyDavy1 

At this point, I recommend you try a software repair using Xperia Companion. If it is still happening after that, it has to be something network related.