Hello aspirant,

Hope you are doing well. It's okay if you have not received any seat in csab round as there are many more colleges you can get admission in. For the refund of the money you need not to do anything as the amount will be refunded back in few days automatically though you can write a mail to the helpdesk for csab for faster refund.

Hope you understand.

If any queries feel free to ask

All the best!!

Regards