Hello,
Without real details about your configuration ; I'm afraid that we won't be able to help you.
Please answer to my first request by providing concrete details about your settings ; I mean screenshots.
Yes, you might have some configuration issues regarding the shipping when associated with vendors ; but if we don't have any knowledge about your website and how it is working, please be sure that we can't understand and provide you any useful help.
So please, help us to help you.
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.