At this time, you cannot edit Active or Upcoming Monthly subscriptions to increase your Space capacity. Instead, you have to first cancel the current reservation and place a new one.
When you cancel a Monthly reservation, you will not receive a pro-rated refund. Your Space will remain active for the original capacity until the end of your billing cycle. You will not experience any disruption in your Space.
You decide when your new reservation will begin. You can begin your new reservation immediately, or you can schedule the new reservation to begin when your current reservation ends.