Hi,I have also basic Guild Wars 2 game and came back to game after some years. Now I also can't buy expansions neither in game nor in their website. When I try to purchase, it says "Payment is not authorized". I have submit ticket to support several times and they answered me that my visa card has problem. But I know that my visa card has no problem. It works perfectly everywhere else. I have also bought all my GW 1 products with my same visa card several years ago.