Christ University — Admission cancelled but no refund not being able to connect with the office

Address:

Delhi NCR, Ghaziabad, UP

I had applied for the Masters of Arts in English in Christ (Deemed to be) University, Delhi NCR. But, the syllabus was changed after a few week's of having paid the admission fees. I had written an application of withdrawal as well as spoken to faculty member about the same, and since there are no other course which I had requested a refund too.
However the there have been no confirmation mail or any response from the office. Furthermore the calls and messages are also being completely ignored. This is an extremely ignorant and unprofessional attitude. I request a response asap.