You need to establish your profile on this new site before you may pay your dues. It only takes a couple of seconds to do so by clicking on the Login button in the top, right-hand corner of this screen.
Should this be your first visit to the website you’ll be asked to select your display name. If you like the default name offered, simply click Submit. You are then taken to the next step where you'll be asked to set up your privacy settings. However, if you are in a hurry you may skip this step and go straight into your profile.
I already did this.
Great (and thank you)!
You must be logged in to access your profile where special action buttons are provided for all users. Once logged in click on My Profile. Under your profile picture locate the Actions header and under this find "Pay Your Dues" under this button: 
When you click this action you'll be able to pay your dues. Or use this link below.
Pay My Dues Now