National Payments Corporation of India [NPCI] — Mandate amount not unlocked

Address: mumbai

I have applied for IPO via Zerodha - application number XM[protected] mandate was blocked and IPO was not alloted to me so automatically mandate release was on 10th February 2021, but it did not happened, today is 14th Feb 2021, still mandate was not unblocked by UIP services, I have emailed to Zerodha about same, they said you have to contact ipo.[protected]@npci.org.in, I have emailed them twice, but no response came from their side..
Please help