As a member of the VIP Membership Programme, if you don't "Skip the month" between the 1st and 5th of each month, you'll be charged 499kr for a VIP Member Credit. This credit will be stored in your account and you'll be able to redeem it against any item of your liking - on the website - for the same price amount or higher (paying the difference in the case of a higher amount). It's like buying a gift for your future self!
Remember that if you make a purchase between the 1st and the 5th of each month or if you 'Skip', you won't be charged.