Try deleting the product, empty the Products trash and importing it again.
*** Copy the product's description to a text file or whatever so you can copy/paste it into the freshly imported product so you don't have to re-write it again.
If you can't find the same supplier (because no details, right?) ... just search for the same product with another seller. If it's not the same price ... edit the price after importing. (temporarily)
Then you will have to place the order manually.
Not guaranteeing this will work ... but it's the best I can think of.