data bundels dissapeared no response

Vodacom dont come back to answer questions. I have 4 gig data bundle in month that use to last me I had to top up another 3 gig on the 15,21 which only lasted a day and a half and now again on the 26 as Vodacom did not come back to me and i use data for work. How many queries must I still lock after the 4th one I called no one takes responsibility and if you ask what is there name and surname they tell you they cant give there surname out so who takes responsiblity I spoke to Wendy, Thembi and I dont know who else. How can I GO THROUGH 7 GIG IF MY UPDATES ARE NOT EVEN ON ON MY Pc. i AM NOT THE ONLY ONE COMPLAINING ABOUT DATA DISSAPEARING SO after all this years with vodacom do I cancel all my accounts or is someone going to sort this out. Very dissappointed and frustrated with Vodacom customer care. Been waiting for more than a week to get answers and will sent you all the references queries locked. I have had it with Vodacom I spent R500 now already on additional Gigs I want this sorted out