Read Qatar Labour Law Article 54 i think it ll help u .go to the Hokomie web site and download the labour law free of cost everthing is written on it .
if u think urs sponsor creat some probelm then go to court its open for everyone .that is the most thing which facinate me in this country that courts are really good and will help u and give u urs rights every time i think there is some solution for u if u r qualified and somone other want to hire u then no probelm at all .

cheers