How to hide the price on a donation product

-- url of the page with the problem -- : aquacorals.com/gc
-- HikaShop version -- : 2.6.4
-- Joomla version -- : 3.6.2

I've got the donation plugin working and everything looks great except that the $0.00 price is shown on the product page above the Amount field. How can that be hidden?

hi
HTML way : remove he code that call this variable in php code
CSS code way : use css code to hide the rendering of the tag that wrap the value you want to hide using selector ( id , class, compound ...)

regard's

What I need is a method to remove the pricing for just this one item. It is a gift certificate with a user entered amount. I need the prices to continue to show for all other items.