Flash havent Activated my Machine after i have paid the Money??

I bought a Mobile Vending Machine for one of my shops, I registered the Device and it gave me the Banking Details to load first deposit. I did on my FNB online Banking and it said the Account and trying to load is a Public Recipient and must select from the Public Recipient List, i did that and put reference as my Machine Number. I thought it will be active automatically until i had to call after 24hrs, i followed their whatsapp process of sending id and proof of payment. Everyday from three days have been calling and they say i must a Proof of Payment with a Branch Code, how possible is that from a Public Recipient. The last Manager i spoke to for 36 mins told me that they cant refund me until i get the proof of payment with a Branch Code, i told them even my Banker will not be able to give them that. I have a machine for a business sitting on my table with money inside but locked cause Flash want a Proof of Payment with a Branch Code. I asked the Manager that does you see the Money in your Bank Account with the Reference Number, she confirmed she saw the money but without that proof my machine will still be locked.