Impossible to cancel Fibrestream month-month

Hi I've signed up a month to month contract with Skyfi about 6 years ago. During the past years their service has gone from good to bad to worse. I've decided to cancel my service with them. Unfortunately they state that a month to month contract means that you have to give a calendar month notice. I don't agree and unfortunately they give me no choice. I can't reiterate how many calls and emails I've sent in trying to do this!! NO REPLY, NOT ONCE. I have to call every time and shout to get ANY attention! Unfortunately I had to pay a full additional month, not to mention a cancellation fee of R1199 which also was not on my initial contract. In addition to this their "cancellation department" does not take calls nor do they answer ANY emails. This is surely their effort in trying to get you to pay for another month!! I would not recommend them to my enemy!!