HDFC Bank Home Loan — processing fee is not refunded since last 1 month

Address:

110093

I had applied for hdfc home loan and paid a processing fee of ₹5900 but hdfc couldn't fullfill my requirements and any amount was not sanctioned and other that i had applied with another bank and successfully sanctioned and disbursed. Then i asked hdfc to refund my processing fee they said please drop mail on trailing mail and i did that but after several reminders and complaint on hdfc website and grivelance but there is no response and update from there side.
I request to refund my processing fee of ₹5900/- please get in touch with me on [protected]