I'm registered in the IHG Rewards Club Accelerate 2016 promotion and one of my "challenges" is to redeem a Digital Reward - last one remaining! - to trigger bonus points.
What's the cheapest (in terms of points) Digital Reward that would trigger that bonus point? I assume it would probably be a song download. Alternatively I'm also happy to redeem points for a donation to a charity if that's an eligible redemption.