10 Phone Calls, 1 Chat & 5 Promised Calls Never Received

I have been trying for 13 DAYS to move my service from TMobile to Xfinity. I have spent at least 17 hours on the phone and still have not accomplished what I began on November 3….it’s honestly outrageous! I have been told many different things that have changed as the time has passed. I’ve been told the previous rep was wrong, promised their supervisor would call me back, that I just had to wait 24-48 hours for the system to update and then then they could proceed, to not worry because Xfinity has my back, that Xfinity’s mission is to keep me satisfied. All I want is to transfer my 4 lines from one carrier to Xfinity. Monday, November 3 I was told that was no problem and I’d get a free gift too if I ordered more lines. We have been with Xfinity for over 20 years (as cable and internet providers) in the same house and we pay our bill on time. I don’t know if my troubles are because I’m dealing with customer service from the mobile department? Has anyone else had similar experiences? Is this normal for Xfinity mobile? If it is, I certainly regret leaving TMobile! We had been with them for 25 years, but I was dazzled by lower prices and new phones! Is there anyway to contact either the same representative or a supervisor directly? How about the president or CEO? I’m so upset that I have a few things to say to that person too! At this point, I think I have no recourse but to return to the other carrier. Am I expected to be patient for even longer? Am I being unreasonable? If you are thinking about switching or upgrading, I’d reconsider if I were you!