Amazon - Subscribe & Save service

MoneySavingExpert.com has just posted the following message with the title Amazon - Subscribe & Save service.

Hi, Has anybody experienced any difficulties in cancelling a subscription to this service? I can save 10% on some cleaning stuff by signing up for the service, and it does say on the website that there is no commitment and it can be cancelled at any time. Just wondered if anybody here knows of any catches?

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