Reserve Bank Of India [RBI] — amount debited but not credited to receiver party

Debit card swiped in indira projects and develop for rs.30, 000/- on 11/12/17 but till now receiver party indira projects saying amount not credited to their bank.
Have registered complaint with my bank karur vysya bank savings bank account no. [protected] who says it is debited on same day to receiver but not providing proof about merchant settlement copy to us even after 45 days of complaint.

Your intervention is required to get amount credited to my account.