Why is my account not being debited

For the third month running my vodacom account has not been debited. I called the call centre last month to find out, and no on could tell me why. When the young lady tried to put me through to the accounts departments, for which I waited for 18 minutes, I was told that they keep cutting her off. This is absolutely ridiculous! I have a physical job in which I work with clients all day long, I am unable to make calls that last for this amount of time to get to the bottom of WHY all of a sudden my account is not being debited. I have not changed banks and it was being debited before... What has changed??<br> <br> I chose this way for a reason, I am not able to get to a shopping centre now until Sunday, which would mean my account is going to be in arrears. I would like a consultant to give me the banking details so that I can make payment manually. I would also like someone to get to the bottom of why the debit order has been removed.