Shocking service and disappearing data

I have never experienced such terrible customer service-EVER! Vodacom have somehow managed to make over 5 gigs of data disappear from my WIFI ****le. I blame this on you Vodacom only because none of your pathetic staff members have been able to show me otherwise. I phoned this morning and after holding for 16 minutes- spoke to Phumzile who was only able to repeat exactly what I had told her and then sighed numerous times when I told her that I needed this to be investigated. She promised to give me feedback by 12h00 today- lo and behold this has not happened. I then started a \chat"on the website- which as soon as I told her what my problem was - cancelled the chat. I then emailed and I have not received a response. I am now in the process of phoning Vodacom again- and 29 minutes on hold"