The paid membership initially runs for the minimum usage period you have booked. You can freely choose this period: a month, a quarter, a half-year, a year or two years. Afterwards, the Fanpage Karma membership is automatically extended by the same period if you do not cancel the account up to one day before the end of the usage period.
After the termination, you will retain all functions until the end of the current usage period. The account then changes to free use and only the free functions are retained. The paid membership functions are then no longer accessible. The termination can be carried out via the online 
account management