This was actually detectable in the calls to the providers if they went as described. The credit card company tells them the perk subscription is active and the streamer says it has been cancelled. ("There was a valid activation of the streaming perk, and a confirmation from the provider" vs "The subscription had been activated, then cancelled in an orderly fashion about 5 minutes later.")

This is perfectly in line with the actual async problem, but differs from what they put in the summary ("Support on both sides saw an orderly activation followed by an orderly cancellation, with no errors").