IDFC Bank — idfc installed amazon voucher not received

Address:

1-41-9/3,aderdh nagar, Visakhapatnam, Andhra Pradesh, 530017

I purchased idfc instacred amazon voucher but i'm not received voucher i purchased last five days ago. But i'm not received voucher. There is no any customer care number and helpline are mail please give us idfc instacred customer care number. How can contact your customer care please tell us. If money debit in my account who is the responsible.
Please check my account
Thanq