Indian Railways — i am not received pos refund amount

Address:

Ekkuru Mangalore, Dakshina Kannada, Karnataka

Dear sir,
I have booked train ticket at mangalore central to chennai central and doj:9-2-2019, the pnr no is:[protected] through my sbi debit card rupay and card no :[protected] on feb 8th and chennai egmore to visakhapatnam and doj:[protected], the pnr no is:[protected] through my debit card rupay and card no:[protected] on feb 8th but i cancelled tickets on 9th feb-2019. Iam not received my refund amount please solve my problem immediately.