Groupon has this Free 60-Day Kindle Unlimited Membership offer ($19.98 Value). After the complimentary 60-day period, your Kindle Unlimited membership will automatically continue each month (until you cancel) by charging the credit card Amazon has on record for you.  Heck, I’d try it for a month or so just for some free reading!  If this is the same as cancelling a magazine subscription, it’s easy-peasy on Amazon.