I see you are beating around the bush 
Let me break down what I mean, and I believe that 4 out of 5 players will be included in my scenario:
A player searches Google for “sportsbook reviews”. My website is #1, Gooners website comes #2. Most players will open at least the first 2 results, lets say the player opens just My Website and Gooners. No matter the browser, most players will open the two websites in Tabs, i.e. the same IE session. Naturally My Website will be opened first, then Gooners.
Now, on My Website Bet 365 is listed as the #1 sportsbook, along with brief review, on the Gooners is #3 with a brief review. Common sence dictates that the player will read my review first (browsing left-to-right). At the bottom of the review I have a link “click here to get 100 pounds free from Bet 365” and the player clicks on it and new window opens with the Bet 365 website and my cookie is stored on the player’s browser. At this time there are 2 possible scenarios:
a.) the player says “Let me see what the other website says before I sign up”, which is perfectly normal; closes my Bet 365 referring window and goes on to read Gooners review. At the bottom of the Gooners review there is a link “Learn more about Bet 365”, the player clicks the window and it goes to Bet 365, the player confidently signs up. At this time however, my cookie is over-written by Gooners and I get no credit, even though I advertise Bet 365 on my top spot and Gooner has it as #3. I am also the one sparking the interest in Bet 365, since it’s my #1 sportsbook, yet if the player visited Gooners website, it would have likely gone with his #1 or #2 sportsbook. What do I get for ranking Bet 365 at the #1 spot? ZERO
b). the player says “let me read the review on the other website”, doesn’t close my Bet 365 and goes to Gooners. Clicks on the link “Learn more about Bet 365”, but when the player finds out that it also leads to Bet 365, it closes Gooners window and goes back to mine and signs up. I still get no credit, because my cookie was just over-written by Gooner’s link a second ago. What do I get for ranking Bet 365 at the #1 spot? ZERO
Either way, I am the one who drove the player to Bet 365, but I get zero credit. That’s how last click cookies work and that’s why I am against them and will drop any program that uses it. Neither of these scenarios would have worked, if the cookie was mine for a week or two. And that’s why I said you guys are trying to get free advertisement from websites ranking higher.
The scenarios described above will occur at least 80% of the time. Maybe a player will open the first 3 websites, or the first 5, but it will all be the same – the first website actually driving the player to Bet365 (if bet 365 is highly ranked) will get screwed at the end.