i got a adwords cupon with netfirms account that I bought now I want to use that Coupon so do I need to enter my cc information in adwords to use this Coupon or can i use the Coupon without having to do so ?
Doesnt it depend what TYPE of coupon? I mean there is only one type of coupon for "within the first 14 days" right? Like that $55 yahoo small business coupon. I don't think you are supposed to use it twice are you?
No you can't - Just one coupon per account. Actually, As you can not have multiple accounts or you are permanently banned - it is just one coupon per individual in life on AdWords.