Product details not work properly - price for Gold Level showed for all

[da_vinci]

I have product which has only price for Gold Level, when user (anonymous or default) goes to product through shop category see only "Ask for product" and it is right.
http://labalance.pl/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=1280&virtuemart_category_id=266
But if user found on google direct link to product see product price and can buy it - so something is wrong because product should be only for Gold Level.
http://labalance.pl/index.php?option=com_virtuemart&view=productdetails&virtuemart_category_id=266&virtuemart_product_id=1283
Where is the problem and what to do?