Redbus — Not cancelling the ticket even when no cancellation policy is shown at there site

Website:

Redbus

Sir,
I made a reservation in r s yadav bus through red bus, today at 11:25, when i confirmed the payment i checked that i mistakingly made reservation for 14th, i had do it for 15th .so i called customer care and they said as per their policy, tickets cant be cancelled after 9:15, even though it has been booked at 11:15.
Such a stupid rule
Then i went to their site to check the cancellation policy, tgere were no, available .

Please help me in the matter.
The ticket coat was 1628 .
Please help me in this matter, the amount is huge as a child