Kindle unlimited 30- day free plan is a LIE only read 1 book between the first 2 days cause description of book was to vague to be invested enough to buy it etc. I go to read another book "for free" under the "unlimited" 30-day trial and now mysteriously there's issues with my card? After it went thru just fine before; hence, why I was able to read orginal book "for free" in "unlimited." So I uninstalled app, waited reinstalled said same error message. And won't let me cancel Trial!