ABSA has ****** me...again.

On the 02/10/15, I I received an SMS from my bank stipulating that R3474.71 was removed from my account by ABSA. My vehicle is financed by ABSA and I pay R2681 a month as my installment. This month however, a further R793 was removed from my account WITHOUT MY PERMISSION. I emailed absa actionline and a few other people in relation to this situation as this has happened before. I was told by Thando Ndlovu that the reason for this was because I had not supp**** proof of vehicle insurance (even though they never asked me for proof) and that once I emailed them proof, my money would be returned to me. I did exactly that, emailed proof back to Thando but he then told me that the situation is now being investigated. I am so fed up with ABSA as this is now the second time I have been ****** by them. If I do not check my internet banking on a monthly basis, I wouldn't know how much they would be taking out. Is this not supposed to be an automated process? I am growing very impatient and frustrated with this company! Nobody has gotten back to me regarding this issue in two days despite my attempts at emailing. I would like my money returned! I am fed up of dealing with this ******** bank!