what should i do because i have make a order sony console from supplier?

hello sir. What to do when i already cheated to make a payment worth over rm900 ? what should i do because before this i have make a order sony console from supplier in china.but they cheated me when i already make a payment worth over rm900 .they just send me a watch worth rm20 if in malaysia..so what should i do. please tell me what to do