You have to pay the full amount for every calender year.since the application date. The member's dues of the current calender year are paid by February 28th.
New members pay the first time by the date of the application.
Normally the VirGlob-SP Administration does not send an invoice. If you forget to arrange your payment you might loose your login password. Don't pay online by credit card for the moment, please. If you insert an ad, you profit from a cost reduction. There are also plans for an English Learning Fair.