Vodacom steels data

I complained about vodacom who steels data. On 30 April a very rude consultant from vodacom phone me regarding the complaint, he phoned from *** and claims that i must prove on date and sms received about the 30 day data that i claim is depleted within 5 to 7 days. I don't have the sms anymore but cloud trake the days that i purchased the data from my cheque account. On 4 April R99 i gig for 30 days. 14 April 1 gig. 24 April 1 gig again. I made sure i don't whach videos nor download or upgrade any thing on my phone. Within 5 to 7 days i get a sms from vodacom saying my 1 gig is finished. The rude consultant told me alot of people complain about the same problem and they as vodacome need dates ect to investigate this if their is a problem from their side. Just his remark in saying alot of people complaining about the same as i do cleary state their is a big problem.