Unauthorized debit order from ABSA / Incompetence

A simple request to ABSA to change my debit order date from the 26th to the 27th and to increase my monthly vehicle installment has turned into a nightmare.

Instead of the above, ABSA admitted that they forgot to cancel the debit for the 26th, thus resulting in them attempting to debit me on both the 26th and the 27th, with the payment going through for the 26th (not with the increased amount as requested) but declining for the 27th.

I contacted them and advised them once more of the error and the bank fees incurred due to their error and once more reiterated that my installment must be increased. They apologized and said they have rectified the matter.

To my surprise, the following month, the debit never went off for either dates because the consultant changed my payment method to cash without my knowledge or consent. This resulted in the payment never going through and now my perfect credit score is *****ed with the last 2 months' issues.

In addition to the above, ABSA advised me that they cannot increase my monthly installment and that I should make an EFT payment should I wish to make extra payments.

I have brought this to the attention of Charlotte Schutte (Department Manager @ the Pretoria branch) and it's been 6 days that she has not responded even though I have followed up. It is totally unprofessional and disrespectful that Charlotte has not responded to advise how this matter will be addressed and what is going to be done about the negative impact to my credit score.

I am urgently requesting feedback in this regard.