non payment of principal money and interest

Location/place: kolkata

Name of company/service: unipay2u india ltd.

Dear sir,
This is for your information that I have already been purchased non retention gold from the company named unipay2u. But from the starting date they are not paid any principal amount and interest in favour of me.Total investment in non retention gold purchase rupees fourteen lakh sixteen thousand two hundred fifty(Rs. 14,16,250/-)only from our group.