Possible Spam?

I need help with an e-mail that went to my spam e-mail. I got an email from a company called FDR Payments, subject is Your TELUS (on behalf of General Credit Services) Account Requires Attention 
They sent it September 12th they have my full name, address, old telus account and a FDR account which i don't know what it is.

They are stating I owe them 34.40. I signed up for Telus December 12th 2024 and canceled the very next day as the service was extremely slow and I was unable to make calls. 

Fast forward to today, I tried calling but have been on hold for 3 hours. I tried chatting to telus support on facebook but they are telling me they cant do anything because I don't have a telus account. I tried making a telus account with the telus original account number but it states I cant because the account has been closed. This is truly a WTF moment. I try to get help online and I am going in circles with a bot.

I need this resolved asap. Maybe whoever closed the account didn't do it properly and it's just been charging me every month? I never got no paper billing sent to me. I was told this account was closed when I canceled. Is this a case of telus just throwing it at the collection agency? Its really bad that they cant call first and see whats up. They have no customer service reps to talk to.