Called [protected] (magcustomerservice.com) to cancel 3 subscriptions, and was given what I presume is a verification code for only one of these. I am afraid I may be billed for a continuation of the other two, and will write again if that should occur. I said very plainly that I wish to cancel all three. For the National Geographic, I was given this number: [protected] For the National Geographic Traveler and for Bon Appetite, I was supplied with no number whatsoever.