Monies Taken without notice or explanataion

How can a debit order go off on the 1st and the 7th? I fully understand the fact that the vehicle was taken off on the 1st and the new one put on the same day. What I don't understand is that the correct amount was taken on the 1st as per the policy schedule and on the 7th a further R537.00 was taken off without notice and now I get told that a refund will only take place within 72 hours after I have sent my bank statement! There is confidential figures on the statement that I do not want others to see! Every time I phone I get asked to rate the service with Miway well I am rating it now and it was EXTREMLY POOR!!!<br> What I let down seriously disappointed. I feel ****** and betrayed!