Naukri.com — Not refund money and block the number

Website:

www.naukri.com

I am Appling for job at naukri.com. Then employ of naukri.com is calling me for interview and also tell me pay 1800 Rs to naukri.com which was fully refundable with in 24hrs so I pay 1800rs to naukri.com. mean while company in which I give interview that also want 8500 Rs so I am not paying them. Then I again call to naukri.com and they say amount will be paid in 24hr. but now they don't Pay me and asking for more money for refund. and also Block my Number.
This is contact number of naukri.com employ -[protected]
claim amount for refund is 1750Rs