Unpaid fees chargedfor unknown debits

So every month I live enough cedit in my account for my one debit that comes off on the 1st of the month. This month I have been charged an unpaid fee for 2 other debits that i dnt know of. These are one of many that I have been cancelling in the past months. On calling standard and explaining to them to cancell the debits as well as the unpaid fee they have refused. So now i must leave money in my account for unknown debits?! ???.. I would gladly accept liability if the charge was for my debit but I refuse to.... Further more the consultant was insisting that i am liable for these debits since i have given authority to whomever has debited, disregarding the fact that I have no idea whi they are.. She futher says i must google them quoting the reference code reflecting on my statement. Knowing very well thath i will not get any information with just that refernce. At this stage I am angry because i have given her an opportunity to assist me by explaining the procedure of getting these companies information as I have previously done. Only after raising my voice she then tries to explain that she can get information for me and a fee of R30 will be charged. I am fustrated with such bad service and highly disappointed at the manner in which clients are handled... All I want is to not be liable for unpaid fees for debits unknown because next month the same thing is likely to happen. Ill live enough money for what is known to me and will end up paying fpr what i dnt kno!!!