Hi,
The Virtual Merchant API documentation does not indicate that it is possible to send the details of the order to their payment platform.
If you find some useful information about that, I will be please to check it.
But for the moment and for the documentation we have, it is just not possible (at it's not our side).
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.