TELUS customer service is horrific. Time to go elsewhere?

I have had issues with The Tech Support for the home Internet as well so difficult we spent over an hour dealing with an issue. I’ve been having for months and months.
and on the billing side, that’s even more horrendous! Ordered a new phone as my contract was up for renewal online was supposed to get $100 credit never showed up sent the phone via mail the way they told me to Canada Post and got it. I got a text message saying they received it and my credit will be on my bill, but yet my bill came and they still charge me for it. When I called. They had the audacity to say that the phone wasn’t the phone they were expecting?! What other phone could it have been? It was their phone they sent me two years ago?! With the bring it back program?! They told me they would look into it and email me back never got an email. They called me back and we’re trying to say it was a technical problem with my phone the same agent who is supposed to have taken care of me? It is now been two weeks and my issue with the billing has not been resolved , I have been customer Telus for over 20 years and this customer service is horrendous! I asked to speak to supervisor many many times final. She said she would they also wanted me to go to the store where I drop the phone off and bought the phone when I told her I did it all online she didn’t believe me?  The phone I received the box was opened and there was no physical Sim card and or Sim card I had requested an eSIM, which wasn’t there. I had to go down to the store to get why was my box open? Why wasn’t my box sealed? Phone drop batteries  is very very slow like my old phone was way better than this thing. I believe they gave me a old phone is the way they treat customers with long as they  reward loyalty ?!!!