Deposit paid but not allocated (phone number wrong / email issued wrong)

I made a payment of R5000 on the 5th of January to Auction Nation under an account number and reference I was issued under my profile. I had hoped to bid on a car the I thought I'd be able to buy but my deposit is still not reflecting. I had several live chats with Kgontse who gave me her email which is incorrect according to my server, I tried calling the number on the website and I'm told it's not Auction Nation and the worst part is that I tried sending an enquiry on the contact us link and no one has responded.

How can I trust service that does not exist? I need my deposit to reflect please.