Very bad customer service

I had a 2 year contract for a card machine that ended on the 22nd of August 2018. I was not informed that I need to send a cancellation notice period of one month. When I called them this morning to get them to fetch the machine only then am I being told to send a notice of cancellation. Now I am being told that I will still be debited till 15th of October. If it is stipulated in the contract that a notice has to be given then they should have sent me a reminder but none was sent. When the agent sold me this contract she did not inform me about a notice period. Also I was not told about a minimum swiping fee. Only this morning after 2 years they tell me that I needed to swipe for more than r47000 to avoid a minimum swiping fee. Every agent that leases out any service should also have the courtesy to send out reminders that the contract is ending and confirming weather or not we wish to cancel. The agent in this matter has not bothered to contact me at all from the time I have this machine to check if I was having any issues. She should have had the decency to contact me a month before the contract needed and informed me that I need to send in a cancellation letter. Very disappointing service. I placed my trust in her and suppressive only to be disappointed. I will never recommend them to anyone not will I use their service again.