hello, my site is a global classifieds, so it has different currency to enable users to display products with their currency price. The problem is that in checkout the price of a particular products suppose to convert to the value of the default currency before checking out, but it does not convert. example. a user may from USA may sell products for $100 and my default currency is Nigeria Naira, so when a buyer places that products on checkout, the price suppose to convert to ₦36,000 as exchange for $100 before the seller will checkout. but it does not work rather it will display ₦100 in checkout. please help