Money Deducted From Debit Card. Not updated on App

My dad has a contract with Vodacom, which I use and have authority over. I had made a promise to pay agreement on the account. Payment was made via the Vodacom App on the 26th October 2022.. 2 days before the agreed date. Money has been taken out of the bank account, however it still has not been updated. I have called numerous times since the 26th of October but still no joy, even after being advised to send through a pdf format showing that the transaction took place. If Vodacom has an issue with the App surely the agents should communicate this and why must I wait another 5 to 7 days? Furthermore no response on email Bottom line, money was deducted from the account. I honored the agreement and the account needs to be updated. Really Poor Customer Service