Unpaid Invoice

I brought businesses to this company and I have the documentation. Econet Media was supposed to pay my commission for bringing business as agreed with Kunle Falucon who was their Sales representative. I have met Zachary who worked as an Executive Director, all of them used excuses to pay my money. Recently, I was told that Kwese TV (a branch of Econet Media) is under liquidation. I have tried to talk to the liquidator, because someone working for the company told me that my invoice was given to the liquidator for payment, unfortunately they also hide the liquidator's name and contacts. If African are working like this and they think to become a big company out there, I doubt. Would you like to help me in this matter? Thank you.