Incorrect balance on Account!

<p>This is the 3rd month in a row that I am struggling with my Vodacom Account.</p> <p>My balance for December R2057.10 was suppose to receive 2 x credits. I received R110 on 20/12/2016 and the R1327.97 on 28/12/2016. The amount of R1947.10 was paid to Vodacom on 28/12/2016. Therefore I should have have MINUS R1327.97 as a balance for end December 2016. My January invoices came up to R1821.71 and another credit came through for R673.27 and the amount of R1148.44 was then paid to Vodacom again on 25/01/2017. Therefor I should have the balance still at MINUS R1327.97. I then received a cashback from Vodacom on the 17th of January and the amount was added to the account which cancelled the cashback out. So, therefore, my balance should still be MINUS R1327.97! Yet it just dissapeared!</p> <p>I want this fixed immediately!</p> <p> </p>