Vodacom, SAs leading headache. .

I called customer care today at around 7 asking why i havent had any network all night, after amswering 21 questions to confirm that i am indeed the account holder. It occurred to me that vodacom has no idea whats plotting. From asking me where do i get my monthly statements as a security question(i dont get monthly statements) to then me asking why my debit order hasnt come off yet. I was then told my payment has been changed to a cash payment. I have never skipped a payment and have always been on a debit order option. So when i disgustedly asked who on earth permitted that as it certainly wasnt me. . The consultant kept quiet and whil i could hear her breath she didnt say a word and eventually put down. Why do i need to answer a million questions to prove i am me when my payment option gets changed WITHOUT MY CONSENT???? i am NOT running around to change this, you changed it you fix it.