Adword coupon code
Hi @Sami W
Coupon codes are provided to agencies and certain publishers and partners. They are not distributed directly by Google upon request.
Your best bet is to ask someone listed on google.com/partners
Alternatively, if you sign up to Google Analytics, after a few days, they will send you a coupon code sometimes.
Bear in mind, that the codes are for new accounts only and they are on a "spend x and we'll match it" basis. There's no free money to play with. You'll still have to pay.
Hope that helps.