Can't send pictures via text message - just started happing a few days ago.

Galaxy s10+

I have tried all self service options known to me.  Reset network connections, cleared app cache, deleted messages, turned mobile data on and off, checked APN, cleared cache partition, checked memory and space, hard reboot (many times)....nothing has worked.

I called ATT and they reset network on their end and that did not work.  Ticket was created and escalated.  I waited a day and got a message saying ticket was closed and everything looked good to them,  How about contacting me to ask me if it looks good to me???  There is still a problem and I am not the only one.    Now I have to flood social media and deal with the ATT bot wanting to help me.