Erm, that isn't how the real world works. I'm not entering into an agreement with Twitter when I pay for a Twitterific subscription, I'm entering into an agreem

Erm, that isn't how the real world works. I'm not entering into an agreement with Twitter when I pay for a Twitterific subscription, I'm entering into an agreement with Twitterific. They are responsible for fulfilling the subscription for which I am paying, not Twitter. If they are unable to then it doesn't matter why, they have still broken the agreement. This is simple business.