Payment delay

Customer paid a deposit with us for a kitchen. The Card Machine took the payment without any delay. Next day we get a email from Ikhokha requesting us to provide our whole pedigree, invoices, supplier invoices, photo of building, logo, etc. We promptly provided it. Then we get an email that the client must provide an indemnity document/letter, selfie with credit card, card with numbers masked out etc. We got all except the client could not print, is not near us, so could not do an Indemnity. We provided. The card in question is an Investec VISA card. Apparently this is a Foreign Issued card. There is nothing on the card for us to identify that. Now, 1 week later, we still don't have the funds cleared. Month end, materials need to be bought for the manufacturing, but Ikhokha sits on the funds? Phoned twice and the agents escalated the call/ticket, and promised someone will phone back, but nothing... Credit Cards are suppose to make business simpler. They take an handling fee, but this is not good service.. There should have been an indication on the transaction, when the client was present at our factory, that we will require this information.