Online payment

Good day I am very disappointed in avon/justine, I tried to join to start selling their products and they requested I first make an order for products worth R750.00 I did that and I paid using one of the methods of payments they provided me with which was a link to make a card payment, I made the payment on the 18th of August 202, they clain they cannot trace the paymebt and that I should provide them with a proof of payment which the bank can't provide me with since this is an online payment/card payment which is the same as swiping your card, they asked for my card number I gave them, they asked for a bank notification message I sent them, I've even sent them my bank statement I don't know what else to do now, I just want to find out from Avon/justine if this means they just going to take my money like that, how do they usually trace payments done through this channel?