UBC365 Complaints

Hello, I need serious intervention.. I played a game on UBC365.ng which was won. But the company refused to credit me stating that the match was fixed.
This is a vague, unconfirmed and unofficial claim as the match have been settled accordingly and point awarded to the winning team.

The match was between Nigerian premier sides Rivers UTD and Katsina United on which Rivers won by a goal..

UBC365.ng have claimed that the match was fixed, and so have returned my stake and revoked my winnings.

I have lost more than $1000 on the site and non was returned on fixed match assumptions. But when I won, it becomes fixed..

I need intervention please.