What about notice period and minimum contract duration?

We do not have a minimum contract period. You can cancel every day by setting your subscription to "off".

Then your already booked days will expire and after that no new package will be booked. 

You can easily manage your subscription directly in your customer account in the cockpit.

What about notice period and minimum contract duration?

See: How can I manage, deactivate or pause my subscription in the cockpit?