Hello 👋 @Quinney
There can be a few reasons as to why a text message is bounced back.
First turn the phone Off and On i.e a Soft Reboot, but if that does not help then follow this by trying a forced reboot by holding down the volume down key and power button simultaneously for more than 7 seconds to restart it. When your phone resets, you will feel it vibrate.
Does this happen everywhere you go or in a particular area ~ I'm thinking mast congestion.
Check your messaging centre number is correct.
Check in with your network customer service.
As a process of elimination can you try your sim card in the other phone.
Long hold on the app icon and then tap i and then storage and Clear Cache.
Settings > General Management > Reset > Reset Mobile Network Connection.
If this is to a specific person then ensure either you or the person your texting hasn't blocked.
May I suggest to perform a forum search as you may find already existing threads with help and advice within.
If i can be of any further help please don't hesitate to ask 😎
Daily Driver > Samsung Galaxy s²⁵ Ultra 512Gb ~ Titanium Black.
The advice I offer is my own and does not represent Samsung’s position.
I'm here to help. " This is the way. "
