https www upgrad com - Upgrad Cancelled admission before commencement but they are not refunding the amount

Dear Sir/Madam,
I have already informed Upgrad regarding my withdrawal from the course ,also submitted the refund form but they have not contacted me after that. Now I got the offer letter here they have mentioned a non refundable of caution amount.
Its very unfortunate and illogical reason for a reputed organization like IIITB not to refund my money within one day frame of withdrawal. The course has not started yet, but still they don't want to refund my money.
I don't think any reputed organization will do such things.

Thank you very much for offering me the opportunity. After much deliberation, I will not be accepting the offer, as it isn't the right time to continue the course.

Hence , I am requesting you to kindly consider my withdrawal request and tell Upgrad team to refund my caution amount (Rs *****). which they are saying only Rs ****.** is refundable.

Thanks and Regards,