Mobile service issues

Read a lot about xfinity issues with texting photos. Having the same issues and been unable to solve the issue through chat or support call. Both reps ditched me with no resolution. Completely left the chat and phone rep transferred me after 45 min. To another extension with a 40 min wait time. Nothing resolved and this issues seems to be a problem since early 2019. Also have lots of dropped calls. Ready to leave and switch carriers. Any suggestions?