I just changed phone company and got the new galaxy s20 plus but I can't see if my message was delivered or read or what not since I got the new phone it was working perfectly fine before when I had the s10
Hey there @userh6itiB5jtd, I hope you're doing well.
Congrats on getting your new Galaxy. I'm sorry to hear you're having trouble.
Can you please tell me who your previous carrier was and who your current carrier is?
RCS chat messages is only supported on select carriers and sometimes isn't compatible cross carrier.
Alternatively, Google offers Universal RCS via Google Messages from the Google Play Store. Universal RCS is also compatible with T-mobile/Sprint RCS.
I look forward to hearing back from you. Take care!