Maharashtra State Road Transport Corporation [Msrtc] — No Refund received for Cancelled Tickets (Cancellation Voucher Number:[protected]

I booked tickets from Pune to Amravati on the MSRTC Portal for Shivshahi seater, but there was a problem with allocation of seats so I had to cancel them.

When I booked the seats (40, 41, and 3), the system showed different seat numbers initially (1, 42, and 43). This confused me, so I cancelled the tickets within a couple of days.
I booked the Front seats in advance so that I would not have to sit on last remaining seats, but due to wrong display of seat numbers I got last seats.

It's been 17 days since I cancelled, and I still haven't received my refund. This delay is causing me a lot of trouble. I really need my money back soon.

My Cancellation Voucher Number is 49050659. Please, I need your help to sort this out quickly.