incompetence

I bought a new sim card at PEP store in forest hill mall on Friday 26/06/2015 and I am a new Vodacom user, I had to buy a new sim card because I was granted access to work from home and the only reception I could access was Vodacom, so I bought R50 airtime and converted it to 30 days data using the USSD *111#. I worked for about an hour using the data and the following day when I logged on I realized that my data was finished. I converted the left airtime to 100 daily data using the USSD *111#. I worked for only about 30min on those data when I realized that the data was finished I called the customer service to get advice on which data should I buy in order to be able to work for the entire day they advised me to buy 1gig I check how much 1 gig and purchased R150 airtime and I converted it to 1 gig using the USSD *111# later on I couldn't log in to work due to insufficient data, I called in the customer service again and the lady advised that the system only takes about 3hrs to update I waited for the period then I called again. the agent I spoke to told me that the transection was unsuccessful and I actually used my airtime. my calls were not handled in a good manner