Maharashtra State Road Transport Corporation [Msrtc] — unable to cancel ticket

I was trying to cancel night express ticket which was booked at around 12 noon on 10/05/18 and departure of bus was at 9.00 pm.. But it wasn't getting cancelled.. As action column was showing can not cancel in the site.. So i have called customer care.. They said go and meet bus depot and as i went there.. They said we can not do that.. Date of journey was on 10/05/2018.. I couldn't do anything and lost my money.. What kind service is that?? Kindly help me for refund