You can unlock your filled choices and you can go for the choice feeling again through the website. Now it seema that there is an issue with the fees payment and it was the security amount that you did not pay. So in that case you check whether you are able to fill the choices for the second round of the counselling or not. If you can fill the choices then you can continue with the counselling and also try to contact with the authorities or any help centre where they can solve your issue effectively.