Himachal Road Transport Corporation [HRTC] — No refund against the cancellation of ticket

I cancelled 2 seat ticket of ticket booking number [protected] in March 2020 and till now I have not received my refund of Rs 2698.

I booked the ticket on 4th March 2020 and cancelled on 18th March 2020. My date of journey was 23rd March 2020. The ticket was booked from Delhi ISBT Kashmiri Gate to Manali. I booked the ticket online from the official HRTC website. After I cancelled the ticket I also received a mail stating the refund is initiated but till now, it's 6 months passed and I have not received my money back. No one is responding the phone numbers which is mentioned in the website. I have sent multiple mails also and I have not received any response for the mails also.

Can you please help to get back my money??