You can upgrade from VIP to SuperVIP whenever you want to. If you still have remaining months from your VIP subscription, they will be converted into SuperVIP months and added to your new SuperVIP subscription. However, a SuperVIP subscription costs more money than a VIP subscription, so the remaining months of your VIP subscription are converted into less SuperVIP months. For example: if you want to upgrade to a year of SuperVIP when you still have one year of VIP ahead of you, your current subscription is converted into four months of SuperVIP. These four months are added to the twelve months of SuperVIP, which makes a total of sixteen SuperVIP months.