Yes. But you should do what everyone does with clickbank. Buy the product, save it to your computer and then ask for a refund....keeping the product. Reason why I only sell membership products so if they refund, they can not use the product anymore.....
it's dishonest thing to do, but yea you can. Also, if you are going to promote it you can just ask for a copy and get it for free.
Except that's not true. Only 5-10% of customers (sometimes more depending on the product) ask for a refund. I'm sure 90% of the people who buy stuff on Clickbank don't even know they have the options of requesting a refund and keeping the product.