Netstar robbing clients hard earned money due to poor administration

Typical netstar.

I had cancelled a contract with Netstar, 06 December 2018, and never heard form them ever. Come October 2019, Netstar claims that I owe them, if how noone cared to explain but went on that I owe.

To make make am done with them, I paid the money, after realisng that noone is going to address the how.

I paid the money, then again, I was advised I owe cancellation fee. In querying that, I recieved a written response that the cancellation fee has been credited, the account is closed. Close up letter was sent to me. I was then relieved, knowing am done with terrible Netstar.

To my surprise, October 2020 I get notification that I owe netstar the cancellation, and its handed over. To date UI am still waiting on the person by the name Alvina to explain how is that I still owe while I have written confirmation of a closed account, no explanation, I just owe. How do people representing the same firm provide different opinion.

Netstar is nothing but a nightmare.