Hello,
The "Payment request" is a way to the vendor to ask to be paid ; but maybe all the order he want to be paid cannot really be paid.
So that request do not create anything in the database, it's more a notification than something else.
Afterwards in the HikaMarket backend you have a button called "Pay", which allow you to pay a vendor for its unpaid orders.
But, because you have a negative value ; I suspect that your vendors are receiving directly the money from the customers.
So you do not need any "payment request" since the vendor do not have to ask for some money, he own you some money.
Thus, the "Pay" button will not be the same button ; it will do same kind of action but instead of generate you an payment invoice and redirect you to paypal to pay your vendor ; it will generate an order and ask the vendor to pay that order for your fees.
Afterwards, if your vendors do not really receive all the money from the customers, it means that you do not use the right HikaMarket mode.
www.hikashop.com/support/documentation/1...ml#config_market_tax
Regards,