Hello,
Would it be possible to have more details about your global organisation ?
Adding the vendor address might be possible under specific configurations but won't work correctly on other.
So I first need to understand a bit more about your store and the global context to give you a more precise (and useful) answer.
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.