I agree! I went on tech support as NOW TV app on our Xbox 360 wouldn't let me sign in. I was then advised to delete the app an download again. Of course I then couldn't download the app again as it's not supported any more to which tech support told me to buy a stick. The timing is too perfect they know we will do anything for episode 3!
Thought I'd done the right thing by deleting app to reinstall only to find it missing, but thanks to advice here it's been downloaded again from download history and I'd now up and running again!! Hope everyone else managed to get back online.