National Payments Corporation of India [NPCI] — Rolex Rings Amount Not Refund

I Apply the IPO for Rolex Ring amount RS.14400 from zerodha Broker and fund hold by UPI mandate, After than i want to the application to be canceled and the application has been successfully cancelled but still time amount not refund, .my ipo application number is CN[protected] and on 4th Aug ipo allotment is out and when i checked the allotment & the status is that i have not received the allotment of shares. Now everyone gets the refund of their money but my amount is still unblocked.but till time hold the amount not to be unblocked also refund. and how much time to unblock the hold amount . Please check the status and revert .