Telkom Not billing right

Helo Peter,

I received a billing from telkom and they charged me R200 for a rejected payment. My account was R120 they requested a debit order for. I called the customer care and they told me thats what they charge. However here is nothing regarding such on my contract. The initial contract cell phone contract ended in July 2016 and now i am on a month to month. This is a ******* and *********. I am sad telkom uses such premeature and pathetic methods to milk money from their clients its so disapointing.