No, Ian, there is no ambiguity here at all. They send a pricelist, and they show their wholesale price. This is there to avoid any misunderstanding, because some pricelists also show the retail-price, and the wholesale-customer is informed that his price will be -50% off that price. They write "wholesale" to identify the price-type.
So yes, this is their wholesale price. Once you buy from them, you outlay money. And this is a cost you have. Hence: cost-price.
And that company might have a retail-price as well. With a retail-pricelist.
Just as I, as a business, have a price for end-customers, and this is the retail-price and I have a price for resellers, and this is the wholesale-price. And I have costs to acquire merchandise, which is the cost-price.
So far you have evaded my question from yesterday: If you think that "wholesale-price" is the correct field-name for cost-price, how would you call the price you give to a wholesaler ? End-customers is retail-price, Wholesale-customers is what, according to you ?