Some SMS messages not sending

WHY IS THIS STILL HAPPENING?! Why is there no support on this?? There are no solid answers anywhere… its all "it randomly fixed itself". This is driving me absolutely mad! I thought it was an android to iphone issue but NO, my mom with a android (Samsung A71), and my aunt with an android ALSO aren't getting my links. My daughter has an iphone and they aren't sending for her either, neither to other iphones OR androids.

I have a galaxy s24 ultra… brand new, obviously, and this never happened before with my S20+ (but its not a phone issue apparently). I switched to Google messages for better RCS integration with iphone (I didn't know that existed before) and I assumed it was a google messages thing but its most definitely not if NONE OF US can send links in messages to each other whether they are iphone users or android users, samsung messaging, imessage, etc. Its a carrier issue and it needs to be fixed FOR GOOD. 

My daughter is having a fundraiser and her and I are trying to text family and friends the link to her fundraiser page and none of them will go through, even with other text in the message 😡 

Another thing thats happened is just a regular text message I sent to my mom said it was sent and she never got it 🤦 so far that was an isolated incident… but what the heck is going on tmobile.