Unhappy customer

Dear MTN Service Provider I am writing this letter as an unhappy customer I called your service line this morning. I spoke to your service champion whom I have explained to her that I am aware that I have an outstanding amount of R850 from the previous month, however my request was simple and straight forward. I am getting services from MTN on the 12th of every month even though my debit order goes off on the 20th of every month. I have put a simple request to say that I do not want a debit order to go through from my account on the 20th of July since I do not want the services this month on the 12th July,however, the lady advised me that won't be possible. I am not happy at all since I am avoiding to pay R1600 this month, please accept this letter from one of MTN customer. Can I please get feedback from you regarding this before the 8th of June? Unhappy Customer PX Manjo