i'm from sri lanka ..I'm working in the one house...

i'm from sri lanka ..I'm working in the one house in dubai i have a one year visa..now already 6 months finish it ..this house very difficult to working ..my madam she's 90 years old ..i cannot work with her.. she's very difficult she's daughter also in dubai i ask them give me cancle go to sri lanka ..i have problem also in sri lanka..my mother sick .. but they don't want to give me ..they asking if u want to go there they asking my visa money .. i don't have money giving to them..what can i do sir ?