Formal Complaint Regarding Billing Error – Request for Refund

I have had a situation with telus. I wanted a prepaid account that was not what the man put my phone as he placed it on a yearly plan and I used my phone 1 time and got a 300$ bill I called Telus refuses to fix the problem the gentle man who set up the phone also had it in the wrong name after spelling my name for 10 minutes letter by letter I called to realize situation they told me it was explained to me what I was signing up for and I said it was suppose to be a pay as you go monthly fee with top up card of 45$  I clearly stated this numerous times and the gentlemen STILL put me on a yearly plan on hod knows what plan. And now that yous have emailed my account and realized the last name was spelt wrong like I had disclosed in earlier conversations you decide to change the name to the proper name and expect me to pay for something I didn't ask for nor did I want. Yous are now trying to take me to court to garnish my wages etc etc all I have to say is I have every email and I will be providing all emails as yous have not wanted to reslove this the appropriate way when I called in and I don't feel I should pay for someone else's mistake especially since it was the flaw of your employee NOT me.