Jntuk — money got deducted but not able to apply for original degree

Address: Are no.625/F,Boggulane qtrs,loco colony, Krishna, Andhra Pradesh, 520003

Website: Jntukexams.net/online/login.php

Hello,
This is a. Sandeep kumar. I have completed b. Tech in 2018. I tried applying for original degree through jntuk website it is showing that 4 steps are completed and the 5th step is pending.
The problem is, in 3rd step it took the payment of ₹1500/-and when coming to the 4th step the website does not showed any options to upload the scanned documents of pc, cmm, ssc, passport size photo. But the website is showing that 4th step has been completed (Uploading of documents) and only the 5th step is pending. I haven't uploaded any scanned documents as it does not showed any such options.
But now when i'm trying to login to my account with username and password it says invalid credentials.
I tried calling to jntuk contact numbers a number of times but it is always busy. I'm also attaching the screenshots.
Tomorrow is the last day for applying original degree, so kindly resolve the problem as soon as possible. Thank you.