Chhatrapati Shahu Ji Maharaj University [Csjm] — My application is showing payment has not done

Address:

F7X8+98P, Kalyanpur, Kanpur, Uttar Pradesh 208012 Address

I have paid 300 fee by upi and i have got a mail by atom but in my csjmu form application is still showing payment has not done and when i am trying to call on a toll-free no. its get disconnected again and again