Pathetic and or non existant service

Approximately 3 weeks ago i lodged a complaint as Vodacom kept submitting a debit order despite the fact that there escalations department and networks were advised to cancel contract due to no coverage in the area. In their wisdom Vodacom then send me an email requesting all my personal information, including my I.D number. Do you think we are stupid. Are you not aware of cyber crime and hacking going on in this lawless country? Why dont you phone a person if you need to? This is rediculous! We are not machines or objects but human beings!!! CANCEL MY CONTRACT!!!!