Hi,
Well, the information you have given does not help at all. We need to reproduce your problem, so we need an access to your website in order to have access to all product information etc.
Just like Nicolas said
Ok, can you provide a link to the product page that you used for your tests so that we can reproduce the issue and look at the information that is sent to PayPal as well as a backend access to your website so that we can check your settings ?
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.