I found this site while searching for some free priority club points. It works very well and the points are updated into your account almost instantly.
Note: I couldnt get the US quiz points for some reason and only got 1,400 in total.
Please note you might have to email the holiday Inn to get your details again, if you dont have your account number sometimes your email will do instead (as long as you have your password).
You can't really get anything free for 2,000 points but its a great top up if you already have some points on your account.