Vodacom Staff are *****

I went in to Vodacom Forest Hill store in Centurion. I took a new contract & paid connection fees, the Sales consultant advised that the first Debit Order will go off on the 26th of October which is my date & out of the blue this morning 12 October R400 is debited from my account. I went back to the store & I'm told by the same staff member they cant help me & they do not do refunds as it is a system calculation & cannot explain why it went of. He was rude & unhelpful. This is pathetic service & I hate the fact that the staff are ***** , now am tied down into a 12 month contract & I am disgusted with their lies , can only imagine the billing errors to follow. I request this issue resolved or I will have to get my lawyers involved.