Waste of my time and petrol

My data disappeared in January and I was advised to go to vodaworld as the problem is with my phone. I finally had free time and drove from roodeport to midrand vodaworld this past weekend. I must highlight that in February i only used 250meg for the whole month, no funny business and nothing has been changed on my phone between January and February. At vodaworld, the iPhone store looked at my phone and told me my settings are fine, there is nothing that should be finishing my data and I was also advised that they should check my software, iPhone store people say software has nothing to do with data and my software is fine. Then I went to vodacare as per advise still at vodaworld and I was told there is nothing they can do except log a query and investigate what is using up my data which is basically the same cycle over again, vodacom will come back and say on their system it shows this and that and my argument is I am not even using the phone at the time and everything is switched off. So I am back to square one, no solution and hoping my data does not disappear again. Please don't waste my petrol and send me to vodaworld for nonsense.