Mishandling of clients' funds

I have made some payments to Vodacom using the public beneficiaries option on the App. The first few payments of R500 went through with no problem. However, the last payment I made of R3000 apparently was not received by Vodacom. When I enquired and requested a reversal from Standard Bank so that I can make the payment a different way they told me that they do not make reversals from corporate companies.

I then asked them to figure out where the money went and they told me they can't because it doesn't show the account number, yet the first one went through and it also doesn't show the acc number. There are references and it clearly states that it is made to Vodacom PI.

I have been given quite the run around for months by both Vodacom and Standard Bank because each company tells me to ask the other and now I am sitting with a huge bill yet I have paid R3000 which no one knows about. Something is definitely fishy.