Customer service chooses to answer with a script than help based on facts-Disappointed

I requested to cancel my 5G line that was on my account in June 2025 and I was advised in store that I must give 30 days notice on my month to month contract. For that reason I chose to cancel effective from the 7th of July via the call center rather as my cycle runs from the 12th to the 11th of each month. I was told to pay the full bill for the other services I have on contract together with the 5g router which was on the month to month contract. I made the payment and waited for the 30 days which ended on the 5th of August. Having cancelled the 5 g internet on the account, I went on to pay for the services which I was remaining with before the start of the new cycle. A few days later my account was suspended for non payment of the internet service which I had cancelled and I went to the store to enquire why this happened and they called the call center where they resolved to investigate my issue and restored my account( the reference for the case is BO***6). Now in September I went on to pay my account and confirmed the balance i needed to pay and paid and a day later the account is suspended for the same issue. I call the call centre again and the agent resolve to give me a scripted response to why my account was suspended yet i keep on explaining the history on the account. She hung up on me because I could not accept what she was saying based on the script and not what happened. So not sure how else we get help as a customer when the people who are supposed to provide you a service are not listening to you and rude whilst at the same time you keep paying them. I am so disappointed with this MTN experience