Furious Client

I have been with Axxess from April 2022 on a 25/25mbps, at the beginning there was network issues but it was sorted and I have been a happy client. For the past 2 months I have been unhappy with Axxess. In July during school holidays I did not pay for the services as the kids visited my aunt. When school opened I paid the full amount thinking the services will also me till the same date next month and it was only 10 days left on that month. On the 7th of August my line was closed and when I contacted the call centre I was told I have to pay on the 1st of every month. I did not pay for August as i did mot have the money I hot paid last week. Today I phoned the call centre to request them to downgrade me to 10/10mbps as there are only 10 days left on this month. I was told that I could not downgrade as I was already invoiced and I told her that I was not aware that month on month meant 1 of every month to me month on month meant payday to payday and also I took the month on month option as I didn't want a contact I wanted something flexible. Phelisa was rude and did not have empathy. Please help me as I am happy with the internet services but this month on month is making me furious.