Overcharged

Yesterday i received an SMS like every other month and it said that my debit order amount was R150 more than every other month. I called your supersonic line at 16:32 and i was told on a recorded line that i should ignore the message. I told your consultant that how can i ignore a message which clearly states that i will be over charged. This is a debit order message.

Your agent went on to tell me that on the 18th i bought data using my bank card on your website to top up my data. She went on to tell me that the R150 extra looks like its for the top up which i clearly paid for. Why am i being charged extra? This is breach of the contract that i signed up for with regards to be overcharged.