useless service

I called vodacom today because a woke up to an sms of my acc being debited. i got a new contract last week with vodacom, i did an online application and one of your conultants call me back to complete the application, i gave her all the details including banking and debit day, in the next two days they debited my acc with R65 for the airtime that they gave me, this morning again, they debited my account and i fail to understand why as i gave them a debit day. i called customer service and they explained that the person who did the application didnt put in a debit day as per my request. she put me through to them as i asked to be transfered so that i can rectify this, the consultant named Cindy (who was uninterested in my story )answered and when i explained my story, she cut the call and put me through their rating system. my account has been debited and i need to ensure that the debit day is the 20th, but now i have to call them again after the 20th to make the changes, nobody is taking responsibility for this or, trying to rectify this. im new to vodacom yet, i already have a bad experience, sh**t customer service and bad business.