False advertising

I am not a DSTV subscriber but I took advantage of your special where it was R 19.95 to watch the finals. I am now trying to make sure that the subscription is canceled as I do not need DSTV going forward. Conveniently the app only provides me a cancelation date at the end of Nobember and shows my outstanding account balance is 175.50 for a R99.00 product that I paid the R19.95 as advertised. This is really not on. You are now forcing me to pay for something I do not want nor need any further and not allowing me to cancel with immediate effect. Please sort this out as this is false advertising and also not fair to the consumer.