After you change your plan:
- The existing plan is canceled and you get a refund for it.
- The new plan is effective immediately and you will receive a charge for the new plan.
- Your monthly billing date changes to the date when you change the plan.
- For yearly plans, the new renewal date is one year after the date on which you change the plan. For example, if you change your plan on June 14, 2019, the new plan will renew on June 14, 2020."