Every paid course is covered by a 15-day refund, no questions asked, on or before day 15. It is pro-rated: the classes you attended and lessons you completed are deducted. The ₹999 seat reservation is refundable only before your second class starts. The Refund Policy has the details.
To ask for a refund, open Purchases from the avatar menu and find the course. If anything is unclear, write to support and we will sort it out.