Jamia Millia Islamia University — Not getting refund even after 49 days

Address:

729, bhawani chawk, panchshil nagar, asangaon.

I have applied JMI residential coaching examination form on 15th June and paid the fees of 850 rupee which deducted with tax made it 871 rupee i have checked the form it said fees not paid I did not have enough money to pay again since then I'm continuously calling the help desk no one is bothering to pick up call after recalling number was switch off. I want my refund back as soon as possible.