VODACOM system promotes content service billing and out of bundle rates for data !

I am a business account holder with VODACOM-4 Phone lines and 3 data aims-last month we received a 11000 bill!my data sim in my iPad has entertainment services and content services for 600 rands!i previously asked VODACOM to block all content and extra Billings!clearly they haven’t listened!why is it even possible to bill our account and it appear on a monthly invoice for VODACOM in the first place! Then, despite my efforts to buy data on special and monito usage-one moment a message says data is low and the next you’ve used 500 out of data bundle! I’ve been build 1600!!!!! For out of bundle data!vodacom could simply have allocated it to the closest bundle!absolute *******! The early warning system does not work efficiently and their system is not designed to avoid out of bundle rates! I don’t understand why an account customer of 10 years should endure 1600 out of bundle rates when the data could simply be allocated to the closest package!