Worst Customer Service and they will debit your money even after paying them.

I am writing this review on behalf of my mother. She had a woolworths instore card which was handed over to MBD. She made an arrangement with MBD which was a debit order. She then requested them to debit the last balance on account of which they did, according to the arrangement that was in place. However, now the account is handed over to another firm with a balance of R742.58. I called the current law firm just to find out why does the account still have a balance they had no answers for me. I went back to MBD to try and get clarity on account and still I was taken from pillar to post with no resolution to my mom's harassment. I spoke to a lady by the name of Linda who confirmed the account is closed and gave me a number ( ********** 508 and ********** 736) which is for the charge off department as they are the department that last worked the account. I called that number from 10am yesterday until 3pm with no answer it just says my call will be attended to but no one ever picked up my call. I then called the call centre again and spoke to Chanai who transferred me to the manager Nonhlanhla, who then said I must tell my mom to call she was not even going to assist me and just gave me her email address. Mind you all this drama and my mom is a pensioner by the way how on earth will she put up with all this calling and no assistance. with what money is she supposed to call with. The new firm that is handling this account received the account on 31st March 2017, and my mom's debit order started going of on 23 April of R500 and the other one 5 may 2016 of R2463.27 and another R200 on 04 May. So they have deducted more than what was owed and the account was not with them at that time. So my question is where exactly did the money go and how much was her balance exactly when she made arrangements. The way the service is poor one can't even request a statement so we can get clarity as there is zero help, clearly MBD is employing the wrong people who are just lazing around at work. Woolworths also confirms the account is closed and yet this account MBD has listed this account on ITC. And summons has been issued against her. I hope in writing this review I will get assistance.