Facebook ad credits question

can someone use several ad credits to ad a fanpage or site or does it have a limit as to how many codes can be used per account per site/fanpage?

With the coupons, your best best is to use a $50 coupon, then a $100 coupon. That's the most you can do per account, and I believe they may have changed it to only one $100 coupon per credit card now - I think you can do the $50's on as many accounts as you want. I haven't experienced any issues with a limit on using many coupons for one page, though.

thanks for your answer...so for each account its only 100 credit per credit card? so if i am going to fb ad a site I can use as many coupons as I want for that site as long as once the credit is reached i add/use another card? can i use gift cards?