Dumb idea to go through the twitter app? I'm on my iPad but refreshing on the app is quicker than the browser.
Just make sure you don't accidentally exit back to the Twitter app or all your progress will be lost. Pretty sure Twitter won't save the stuff in your cart but I'm not sure. If you're logged in and accidentally exit, it'll save, but if not, you're fucked.
EDIT: Frank Ocean and FIFA are the only things getting me through today.