If you are eligible, the $100 AWS promotional credit will automatically be applied to your AWS account and is valid for one year from the date of issue. You will be notified via email on or around the 15th of the month following your acceptance into the program. For example, if your application was accepted in March, credits will be applied to your AWS account and you will be emailed in April. If your Alexa skill incurs AWS usage charges in April, additional credits will be applied to your AWS account in May, which can only be used for charges incurred in May.