As per Jimmy007's previous post send yourself and $50 e-gift card, and within 3 days receive a $10 account credit. Full Terms and Conditions here
The link should allow you to clip the coupon so that it is automatically applied at checkout and will also tell you if you are eligible, otherwise just use the code at checkout.
EDIT received my $10 credit today, 1 day after ordering the e-gift card.
I get- Unfortunately, you are not eligible for this offer.