Account is currently blocked when trying to create EC2 instance.

Hi, it is possible that your account is limited to use certain region only as free tiers ( mainly US East (N. Virginia), US East (Ohio), US West (Oregon)) You can validate by trying to create the EC2 in those regions. if you need more regions, you will have to contact aws-verification@amazon.com and explain why you need other regions.

But test first in US East to confirm. Hope it helps.

Here is an email that I got from AWS:

Dear AWS Customer,

Thank you for signing up with Amazon Web Services!

As a new customer, you can launch Elastic Compute Cloud (EC2) instances in 3 AWS regions. We suggest you to use the regions US East (N. Virginia), US East (Ohio), US West (Oregon), but if you prefer other regions please contact us at aws-verification@amazon.com and let us know which 3 regions are more convenient for you. You can find the list of regions and which services are available in each of the regions at http://aws.amazon.com/about-aws/globalinfrastructure/regional-product-services/. Please make sure you are not running EC2 instances in the region you are transitioning from.

If you have a use case that requires you to run EC2 instances in more than 3 regions, please contact us at aws-verification@amazon.com describing your use case and we will increase the number of available regions.

This limitation is temporary and only affects EC2 – other AWS services are available in all regions.

Sincerely, Amazon Web Services

So please change your region to US West (Oregon) or US East (N. Virginia) or US East (Ohio) and then it will works. If you still want to use other regions, contact aws-verification@amazon.com for more detailed.