Allocated our payment to another account

Vodacom allocated our account payment (October 2014) to a different customers account.<br> We have contacted Vodacom on more than 7 occasions to rectify this incorrect allocation.<br> On 13 May 2015 I spoke to Robin in the accounts department and she said that this would be rectified before the end of May 2015 so i only had to pay the account difference, which i did. Today our lines have yet again been disconnected and i have recieved a notification for the \balance".<br> <br> When will this be rectified? How many more times do i have to call? How many more times do our WORK phones have to be disconnected?"""