I was checking AwardWallet the other day and noticed something in the left hand bar that I'd never registered before. If you scroll halfway down the page, you'll see it too - 'Referral Bonus Points: 0'. Except that mine said: '500'. I didn't know what these were so I clicked to find out. Apparently, if you give out a free AW code and someone uses it to get an upgrade, AND at a later date pays AwardWallet a subscription fee, you will get some referral points. A few months ago I remember that some blogs recommended AW users to buy a subscription at the time because AW was increasing the fee a month or two down the line. I gave out a code last year and two people who used the code paid for subscriptions. I was given 250 points for each referral. AW offered to convert them into American Airlines points (875) or Hilton points (1000). I opted for the latter. So, a bonus 1k points for me that I never knew I had. Worth checking your AW accounts to see if you have any!