Amazon repeating payment declined

[Revels]

Amazon's "Subscribe & Save" payments always fail

Amazon has this “Subscribe & Save” service, where certain items you order regularly are purchased and sent to you automatically at specified time intervals. My automatic “Subscribe & Save” payments to Amazon seem to always fail — they show up in the Monzo feed as failed transactions with message “You approved this payment a while ago”. I have to go to Amazon and re-approve the payment method (without changing anything), and then re-approve the payment in the Monzo app — every time there is a ch…