What happens if I up/downgrade to a new plan during the free trial period? Do I get and invoice?

Option A: I change from a plan WITHOUT free trial to a plan WITH free trial You will start the trial on the day of the change Option B : I change from a plan WITH free trial to a plan WITHOUT free trial The trial ends and I will start the new plan from that day over. Option C: I change from a plan WITH free trial to a plan WITH A LARGER free trial duration

The time used up to now is deducted and the trial of the new plan wll continued for the remaining days. Option D: I change from a plan WITH free trial to a plan WITH A LOWER free trial duration The time used up to now will be deducted and if there is still time left you will continue with the trial up to now (otherwise it ends).