Vodacom: "Please do not bother us, speak to a robot"

I bought 3GB of Data on the 6th of May. I check emails at my home, and do nothing else with the data. After I am done checking mails, I switch off the router. on the 18th of may, the data was depleted. The reason for this review, is that I can not get through to a consultant to explain to me what happened to 3GB in 12 days. I phoned customer service and followed the steps, hoping to speak to a consultant; but no. I had to message an I automated response robot. After I sent my replies, the robot only replies with it's commands, and nothing i can read. After a few frustrating tries, I had the option of speaking to a human. But again, to no avail. The response from this robot was: "unfortunately, you have reached your monthly quota for access to our call center". REALLY? I have phoned TWICE this month! and since when do you have a limit on how many times you can ask for help? Ridiculous. After I find out what happened to my data, I am switching networks.