NIIT — Not getting any Assistance related to my Refund amount

Website:

www.niit.com/india

I tried contacting several time to Vithika Pallela from NIIT through her I get admission in NIIT in Java Developer Course and she is not responsive even she is not picking up my phone call now after getting fees from me My Enrollment ID EN[protected].Please assist me on this or I am going to make a tweet regarding this . I am getting Harrashed as noone replying to me now I tried contacting several times sent emails regarding this .
I am having an issue and I won't be able to continue this training or course any more I want to drop here and want my fees to be refunded kindly let me know what deductions you want to make for these 15 days and initiate refund for the rest of the amount please it's a humble request I do not want to continue anymore with it