Please make sure that the return link you set up for each product you added to our database either has NO return URL, or that it has the url you want the buyer to be passed back to assigned to it. If the one with the product is different, then it will override the one you set up in the Return page.
If all customers will be redirected to the same url, you may want to only provide the url in the Site Management page rather than at the product level.
