By "internal payments" are referring to peer to peer transaction on a centralized exchange? It appears Shasan does that regularly, but I suspect that's primarily because he's dealing a lot with stable coins and transactions are much cheaper to on a centralized exchange or centralized "smart chains."
That doesn't seem to apply here since all the "borrowers" posted bitcoin addresses, and requested bitcoin. Just to play devil's advocate; I suppose they could all be Binance addresses, which would make it possible that the loans were issued internally and we wouldn't be able to see the transaction. What are the odds that's the case in this situation, though? There was no mention of binance or any other centralized exchange, and that would be way too coincidental four out of four times.
If there is an internal transaction, then there is no fee, and when anyone posts a wallet, I do not know whether it will be internal or not. There is no transaction ID by which we can track. But they have payment IDs and if we try to go to details then we would be able to verify with a screenshot, and screen record, with the trusted user and also if still doubt then we can verify the payment by chatting with the customer support.
But for this user, I doubt whether they are doing any or that is a self-transaction or something else. But I think the user has not transferred any funds. Based on the first few posts it seems to me that the user wanted to send the fund on 1st June 2023. Though that has not happened.