We are contacting you regarding a past Prime Video purchase(s). The below content is no longer playable on Prime Video.
In an effort to compensate you for the inconvenience, we have applied a £5.99 Amazon Gift Card to your account. The Gift Card amount is equal to the amount you paid for the Prime Video purchase(s). To apologize for the inconvenience, we've also added an Amazon Gift Certificate of £5 to your account. Your Gift Card balance will be automatically applied to your next eligible order. You can view your balance and usage history in Your Account here:
If I recall correctly there was a time, where they did a deal with Disney a few years back. Disney wanted to bring one or more of their classic animations back to the cinema and Amazon disabled playback of those movie(s) for that time even for people who had "bought" them.