Disappearing data and poor service at Vodaworld

Complaint 1. After phoning Vodaworld on 02 Apr 16 to enquiring of a iPhone 5s deal of R199/pm and confirming that they have stock, I went all the way, 20km from my home. When I came there, I received a ticket and waited 1 hour and 20min before I was helped and informed that there is no stock. iStore then helped me. Complaint 2. After losing 1GB data as mentioned in complaint during this week, I bought another 1GB date on 31 Mar 16 at 19;25. I once again ensured that all auto updates and downloads are disabled. During the morning of today 3 Apr 16, I received 2 sms's that my data is less than 199mb and second one less than 97mb. I phoned customer service. The lady told me that the iPhone 6s uses a lot of data. I explained to her that my first 3 months when I received 1GB extra per month this did not happen, why now. Please investigate this matter because it does not make sense. I cannot continue like this. I came to Vodacom due to poor service from other sp, and now I get this, this is unexceptable. When I app**** for this contract I asked the person why is Vodacom so expensive compared to other, they told me, I pay for good service and products. This is not true if you look at this