To Login to your account, click the left menu bar
First tep : login, you would have to click on left menu bar Link
Second Step : You could see a new page like bellow image then select the Membership Level option button that you want to upgrade to.(Default is Platinum)
Third Step : select the Paymentঅoption button that you want to payment by to us like the bellow image.
Fourth Step: click the button like bellow image.
Fifth Step: You could see a new page like bellow image then you would have to click button