Did you spam? It happened to me once. My country is also on Clicbank's blacklist. When I first started out, I used VPN to create an account. I got the same message after posting hundreds of affiliate links on twitter. After that, I learnt my lesson. Then I moved on and created another account. It's been 2 years now and my aacount is still up and running. I even created extra 2 accounts (I currently have 3). So, it's either you spammed or you employed an ungodly method in the course of promoting Clickbank products. If you must spam, never post your links directly. Setup a landing page and point your potential buyers to it. And then on your landing page, add a banner or a button to the affiliate product. My advice, use VPN to create another account. As long as you don't spam or use blackhat techniques to promote CB products, your account won't get blocked again. Good Luck.