AWS SES sending limit increase denied in spite following policy

To come out of AWS SES Sandbox I requested a sending limit increase.

Our website http://cacharya.com

1. We are collecting email id's from sign up and from subscribe option.
2. We are providing unsubscribe link in every email we send to our user.
3. To handle bounce and complaint, we created a SNS http notification and configured our SES domain and emails to send bounce and complaint notification to the given http url. On receiving a Permanent bounce or complaint we mark that email id unhealthy and we will not try to send further emails to that email id.

I gave all the above information in our use case and still SES denied the sending limit increase.

Now the weird part is there response

Unfortunately we are not able to provide specific details as to why your application has been denied, but we took this action because your use case is one that could adversely impact our services.

I tried to convince them to the best possible. I asked them to approve a limit of just 1000 emails per day. So they some data to know whether we are adversely impacting there service or not. But they denied. And then they responded with this:

We understand that you may not agree with the outcome, but we will not be able to assist you further with this issue and there will be no further correspondence from us regarding this case.

Amazon Web Services™ Acceptable Use Policy: http://ift.tt/N1ArwI

We are following there policies and still denied without a proper reason. Can't express how frustrating it is.

Has anyone faced this?
What else can we try to gain the access?
Anyone has any idea why they denied us? More than the access now I am curious as to why they denied us.