Sahara Q Shop — company is not returning matured amount invested in q shop

Hi,

I had invested my hard earned money in "q shop goods (Exist) plan h".
The account has matured. The agent and sahara manager is not returning any money and forcing me to invest in other scheme.
But i asked for matured amount before investing more and then they refused. They are also telling now to go ahead and file police complain, but money cant be returned. Please help me getting my money back.