Re: My Free $100 credit in Adwords
Promotional credit is generally only offered to new advertisers and must be used on the new account within 14 days. It is not something that you can apply for and if you are eligable it would be sent to you via email or post. I'm including a link with information about promotional codes for further information.
I've also included a link giving information on how to find out if you are eligable for promo codes
I hope this helps you, good luck :-)