Watch4 LTE - no texts

Phone: Galaxy A51 5G

Watch: Samsung Watch4 LTE version - received 4 days ago

I purchased a Watch4 to be able to go running/biking & still receive calls/texts without having to take my phone with me. I received my watch on Thursday & started setting it up. I noticed that the ability to receive calls/texts on my watch when on LTE wasn't working properly. 

On Saturday, I stopped in to my local retail location. The folks there were so great & super helpful. After some troubleshooting, they reset my network on their side to see if that may help whatever is going on.

After doing this, my watch started receiving phone calls on LTE. However, it was still not receiving testing text messages. The poor guy helping me tried everything he could think of to get this working but was ultimately not successful.

At one point, we did see a message on the watch (which is no longer there) that said there's a setting on the phone which was making it unable to receive texts. The message didn't say what setting it was, though, so we went through every setting we could possibly think of, short of resetting the entire phone. 

Does anyone know of what else I can do to get texts successfully going to my watch while on LTE? This is the entire reason I bought the watch at all so not having that functionality is very disappointing.