Hi,
Would it be possible to have a temporary backend access to your website so we could test directly on our end ?
It will allow us to check your configuration and understand the UPS returned rates.
Please use the "contact us" page with a link to that thread, so we will know how to do with the credentials.
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.