Do seedbanks accept gift cards?

I have a $100 Visa gift card, the one that works like a credit card, and I was wondering if Attitude or Nirvana would accept this as payment.
I'm hesitant about making a purchase using my real credit card.
Has anybody done this or know if this will work?

I have used them, not with the vendors mentioned though. You must make sure it is valid for international use. Often they are U.S. only.

Which vendors?

Sannie's and Herbie's

it shouldnt matter. money is money and those cards are just like real credit cards but like indicator said check and make sure its ok for int'l use