Payment of accounts

My mother and I upgraded our Vodacom contract from a R64.49 one to a R48.49 one due to the fact that we have already paid off our smartphones via a call from Vodacom somewhere in October (Upgrade order number: 1- ********** ********** ). My mother pays the Vodacom account every month via EFT without skipping. On 1 January 2018, Vodacom started sending messages to her that the account is in arrears. We phoned Vodacom on 5 January 2018 to find out what was going on and we found out that Vodacom charged us R300 for both numbers to be renewed. However, we were told that there are no costs involved to upgrade a Vodacom contract telephonically. Therefore, Vodacom owes us money but is now harassing us about an account being in arrears. We were assured by a Vodacom staff member that we would be credited that amount(Reference number: 1- ********** ********** ). My mother promptly paid the new amount of R96.98 on 5 January 2018. And yet surprisingly we are being harassed once again today, 10 January 2018, regarding an outstanding amount of R213 with threats of being disconnected from the Vodacom network! Really Vodacom??

Please contact us on ********** 110 or ********** 875.