Kindly notify clients before randomly putting through debit orders whenever you feel like it!

Vodacom just decides to put through a debit order without consulting me first. Since there was no money in my account this is going to cost me R 150 in bank charges ! At least have the decency to email me beforehand or phone me!!! I get no monthly statements so dont even kmow who to contact in the accounts department or what my account number with them is! Extremely unprofessional. This is for wifi. Astrid