Monthly added subscription

<p>I am so sick and tired of the same story every month. Every month Vodacom adds x2 - 3GB data to my line ********** . I have never asked or subscribed for ekstra data. And they can see it on their system....But cant explain why this keeps on happening .....Im on a uChoose Flexi 500 contract. which means I receive R500 airtime every month - and with that I buy my once off 30 day data that I use. I dont have an open contract so when my airtime or data is up - I need to load more. For my contract, handset, Identity subscription and itemised billing my invoice on this number is supposed to be R891.49 ..... BUT with the add on the account is R1489.49 Can someone please just do their job right and take this off my account perminantly !!!!!</p>