Hi, thank you for getting in touch with us.
The default flow of WC Marketplace only handles the payment from the admin to the vendor. Now the admin of the site will get full payment of the order, because the customer uses the payment mode enabled via WooCommerce >> Settings >> Payment. (see this scrrenshot – https://prnt.sc/lxbdew)
Now as per WCMp Schedule and payment mode (see this screenshot – https://prnt.sc/m7tciu), the vendor will get their part of the commission.
If you want the vendor to get paid directly when the customer pays for the order, then you may use WCMp Stripe Marketplace (https://multivendorx.com/product/wcmp-stripe-marketplace/), WCMp PayPal Marketplace (https://multivendorx.com/product/wcmp-paypal-marketplace/) or WCMp Mangopay (https://multivendorx.com/product/wcmp-mangopay-marketplace/).
Now can you kindly explain which payment method you are mentioning about so that we can assist you further .