No Payments 5months waiting+ clearing dateschanges

I've been investing since march 2015 all seemed fine got payments BUT since july my due returns were not paid! I was given 25K on 12 august instead of 90K and was promised to be paid balance on 24 august by Instalments and remaining 90k by 2 and for other 2 special investments for 65k by 2 and 68k by 2 , and since nothing instead I get clearing dates for withdrawals but when that date arrives I receive nothing! I've requested for my refunds but no response! I'm tired of always emailing to them asking for payments, I've filled countless withdrawals forms till date nothing