Jarika Trust : Upgrade without permission and not refunding us for the mistake

Jarika Trust: Vodacom Account BO177978-6. Vodacom did an upgrade without permission on our account and debited our account with R2404.88 on 03/10/22 instead of the normal R1404.00. I paid for the upgrade and 15 gig of data that I did not want. You reversed the upgrad, but you never credited my account with the R1000 that you charged for the 15 gig date. I did not use the data and asked you repeatedly to take it back and credit my account. I spoke and corresponded many times with Luckyu Dengana, Sethoane Nhlanhla and last week with David Dunywa, today I spoke with Winnie .....My phone was cut off last month because I refused to pay the R1000, in the end I paid it .....This month my phone will be disconnected again because the just dont do the transfer.