Ngpay — Transaction failed

Address:

Coimbatore, Tamil Nadu

Respected sir,
I was using ngpay application for booking film and other things and I m using my south indian bank debit card this is my card no[protected]
If I submit the transaction using my secure code the transaction is done but the reply is
Rejected by the switch -CAF 0-9 and if I give retry again it shows as
Rejected by payment gate way- Duplicate merchant transaction Id
Well please solve my query and give solution to my mail id
[protected]@gmail.com

Thank you ,