Uttarakhand Roadways — refund not received

Address:

Fatehabad, Haryana, 125050

I booked 3 online tickets from delhi to haldwani with PNR 127R[protected] for
dated 17th june 18. Due to some medical reasons, I cancelled all the tickets on 12th June 18. But I have not received any refund till date (19th june 18).I have written the email to helpdesk also but did not get any response.This is not a attitude to behave with customers.