One year to cancel my card and still being charged fees!

After being a Discovery Card holder for more than 3 years, I decided to cancel my card. This process took over 9 months and Discovery has charged me with service fees for these months. I called the call center in September 2018 and was told to settle my card, which i did immediately. I was told that my card would be cancelled as soon as settlement is received. I sent through POP and nothing was done. In October 2018 I got a call from the card division querying my cancellation and said they are awaiting paperwork. I was then sent a cancellation form to fill out. I submitted the form and had also been charged the monthly fee despite me settling my account and requesting cancellation. In December my card was still not cancelled and after querying for the 3rd time at the call centre I was promised that my card will be cancelled and the monthly fees reversed as of September when I initially started my cancellation process. In January, I was charged the 500 Discovery miles fee and the debit order was taken off my cheque account. I called again and queried my cancellation and the fee to be reversed. I was promised that this would be done! It is now August almost a year later and this matter is still not finalised. I have wasted time, energy and money trying to get my card cancelled and have been charged monthly fees since. I want my money back please!! Stop charging me fees when I settled my account in September.