I received a free coupon worth $30 i think and still have it somewhere amongst my mail.. it was from google for my continuing adwords advertising.. now i read their terms and other small print.. i see that coupons only work with new accounts opened for 14 days.. i mean why send me a coupon if i already have an account thats been running for over a year? I havent tried using it yet.. but thought id ask here.
Why don't you just try using it? If it works, you get $30 for free and if it doesn't.. well, you get nothing. It's not like they'll punish you or something. I got a $100 adwords coupon myself after two years of advertising a few months ago. Worked like a blast.
look for VCC, open a new adword account and use your voucher. There is someone I recommended for buying VCC with cheap price, pm me if you are interested.
i tried using it.. it didnt work.. i emailed google adwords back but they tell me to post my message on the community google boards for information.. :S