Disappeared data bundles 5 gig + 10 Gigs

So I got a work phone and a modem this past Saturday on Vodacom contract. Used it on Saturday and a little on Monday to connect to my personal phone. After work when I get home all the data on the modem is gone, I'm not the only one, there are thousands of others who experience the same thing. Vodacom has apologised but it's simply not enough. I was not able to do my work last night because of this and they still have not reimbursed the data back. So they claim that they have reimbursed but this false! A lie! I am so livid that I still have to call them wait hours on hold just to get what is due to me paid for by my employer. Thousands of us are now at Vodacom's mercy to do our work and to communicate. It goes to show that they only care about money!