Lies when you inquire

On the 17 of March i phoned dstv to find out why my account has not been debited. I spoke to Zinthle, she told me my payment method has been changed to cash payment. I then advised her to leave as is. April month they try and debit me again, which i already done a cash payment. This month(May month) i done a manuel payment again. Out of curiousity i call dstv again and spoke to Dieketseng, told me im still on Debit order. I told her take it off my account(which she escalated the quiry again). Last night my account got debited again after i asked her numerous times if yhey going to debit me again and she promised NO. How incompetant or how qualified is the people dstv hires? I paid dstv more than R1400 this month! Can you pkease sort my problem out ASAP!!!