Account Collections Issue

Hello Telus support, I am experiencing exactly the same thing as I just got phone calls and email from first choice credit service on June 26,2025 saying that I have $241 balance outstanding when I just got an email from Telus saying that I have $128 credit on June 25,2025. I cancelled my contract in April and received a bill in May with a $241 charge for service of May which was not making any sense. I called Telus support , confirmed my final balance was only $106 .i made the payment in full immediately. Then ! On June 25, got an email from Telus with $128 credit back (not sure why ???) then next day got another email from collection agency for $241 balance which made me so confused. That email was threating the payment must be paid in 7days or my name would be reported to credit bureau which would impact my credit score/report. Based on all feedbacks here, seems like I am not the only one. Based on What I have experienced in the last couple months, Telus should have better account records management/reconciliation.