Nextra Teleservices — Complain about nextra pathetic service

I am chetan from jaipur, i did a big mistake by trusting a fraud company "nextra" also refers as nextraworld, nextra teleservices etc. They are fraud.
I took connection but knowing that they have several issues i claim my money without any installation i. E i don't install anything and get anything from nextra, but they not given me any refund even after 15 days. I also mail to there nodal officer and there appellant officer they are also fraud, because i not received any assistance from there side, they are only for wasting time so they can eat our money.

I request anyone who is reading this "please keep away from nextra" this company is fraud.
I will glad if anyone know and tell me, how to get refund from these frauders.

Thank you