Vodacom take money after my contract has ended

<p>Each month I pay upfront for the Red Advantage package that I had. I never went over the free minutes or data.</p> <p>My contract ended 31 MArch (I gave notice 31 Jan and 28 Feb to Vodacom), and requested that I go over to prepaid.</p> <p>Vodacom deducted R1000+ from my account in 2 April. Upon Query, they indicated that I only paid after the month for my subscription charges. Which is not true, as I remember that the day I joined on the package, I had a prorata amount deducted from m y account for the part of the month that was left over. And hence forth paid the subscription on the 1st of every month,for the month that is coming.</p> <p>Please assist me with this query, as it is not correct and it feels like Vodacom has taken my money and now is giving me excuses not to give it back to me.</p> <p> </p>