Solutions for RCS "waiting for activation"

Its been three days, I can't approve any 2 factor authentications on any of my personal accounts.  Spent hours on the phone with Xfinity mobile, tell me they will call back and never do.  I made a really bad decision moving my service to them but thought I might check here if someone has a solution for the problem.  This can't go on much longer, I can't get in to important accounts and they don't care.