Useless, ***********, infuriating customer service

Just when you thought Vodacom customer service couldn't get any worse! Following my previous complaint on Hellopeter where I complained about atrocious customer service and having to pay Vodacom R7500 and still having my phone locked for 5 days without any resolution, I had purchased a 2GB data bundle on 16/8/15. I found out today that I only had 6.67MB data left, even though my phone indicated that I have only used 366MB since 16/8/15. Vodacom told me today that because I changed to another package in September, I will forfeit everything on my existing package including the once-off 2GB bundle. I told them I had a month-month 2GB bundle that is meant to be activated under my new package, and they said Vodacom takes 24 hours to migrate a contract, during which I will have access to NOTHING (no data, no airtime etc). So Vodacom simply cancels everything you have, even if you've paid for it, before activating a new package? AND takes 24 hours to migrate to a new package, during which you can't use your phone?! This is literally what I was told. To make things worse, I asked when my month-month 2GB will kick in, and she said she couldn't tell on the system at the moment!!