FlyerTalk Evangelist
Join Date: Dec 2006
Location: Pacific Northwest
Programs: UA Gold 1MM, AS 75k, AA ExPlat, Bonvoyed Gold, Honors Dia, Hyatt Explorer, IHG Plat, ...
Posts: 16,977
$50 is the limit per giftcard, but you can buy multiple in one shot. They will post individually as $50 charges and get credited. At least that is how it works for the Plat card, I just completed my purchases.