SHOCKING SHOCKING SHOCKING!!!

Ok here we go again. MTN I am shocked at your customer service and your willingness to just turn a blind eye to customers requests regarding their account!! I have been fighting with MTN for 6 months over the same ****** thing. I started a new job in January and requestes my debit order to be changed from the 15th to the last day of the month. I was told yes it is done. My debit order goes off 15 March. Phone again and request once again can I please change it to the end of the month. I was told yes it has been done. Funny enough April 15 the debit order goes off again and my phone gets switched off. I phone and figjt with them saying obviously the money wouldnt be in my account as I get paid end of the month as I have told them twice already. I get forced to pay this money that day before my phone gets turned on, even though this was their fault. Ask once again please change my debit order to end of the month. I get told yes sure it has been changed. 15 May Low and Behold there is a debit order once again!! My phone gets switched off again. I phone and fight, explain how many time I have gone through this. I ask once again I WANT MY DEBIT ORDER AT THE END OF THE MONTH PLEASE. ONCE AGAIN YES IT HAS BEEN DONE. 15 JUNE 2020!!!! THEY TAKE OFF A DOUBLE DEBIT ORDER!! I AM NOT EVEN BEHIND!! SO THEY TAKE DOUBLE AND ON THR WRONG DATE AGAIN!! I am over MTN South Africa!! They have stuffed up my credit record, forcing me to pay my account in a time of the month when it is difficult to me!!! THIS IS MTN'S FAULT AND I WANT IT SORTED IT!!!!