Cannot get any support from Telus to fix their mistake.

I have wasted hours over the last week trying to resolve an issue that Telus caused by failing to link my accounts when I added a line.  I was on the phone with the Telus rep (who was very helpful at the time) for over an hour to get the line up and running.  Two hours later he phoned back to say that the account wasn’t linked and could I hold while he transferred me to someone to fix it.  Well I was on hold forever, on my way to an appointment, and had to hang up before anyone picked up the phone.  Since then I have been trying to get through the AI assistant to schedule a call with an actual person to no avail.   This is the most frustrating system I have ever encountered.  Meanwhile they are sending me messages on the new cell telling me to finish setting up the phone when I can’t because the accounts haven’t been linked.  

I tried to message a real agent but they haven’t replied (and I have been patient and waited for days), and I’ve tried to schedule a future callback only to be told that the service is unavailable.  My customer service experience has been horrendous.