Vodacom a ******* or what?

Hi bro P Whenever I buy more than 1GB data from vodacom I always have difficulties with the internet connection. And when I try to get to them it takes me hours if not a day to speak to their champion assistant. My wife is using same network and when I buy her lesser data we can surf without having any problems with the internet. My worry is if they know we gonna lose out a day's updates, why do they sell us cheap and affordable data. But after 00H00 network automatically reappears. I'm not giving in to charity of their own. It's my hard worked money I'm losing for such inexperienced service from Vodacom