Hi,
Even if you have an old version of HikaMarket, the shipping per vendor should work.
Please provide some screenshot of your shipping configurations.
In you case, please do not use the warehouse system, do not attribute warehouses to your products or the configuration will become too much complicated ; using the HikaMarket shipping per vendor is just enough.
But I have to be sure that you did not activate or configured something you shouldn't.
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.