Yes there is recorse under U.A.E Labor laws, however I would make three points.
- The U.A.E Labor laws are written in Arabic and it costs a packet for an English language translation; They also change by the month subject to... well anything so your going to need to find someone to help you there;
-The legal system isn't too bad but the cost of a lawyer in the Middle East is... well a London lawyer would blush at Middle East prices... well at the cost to an expat, not a local you understand.
-If your employer is that much of an ass do you want the trouble of making waves, potentially getting your visa canceled and rendered persona non grata?
Let's face it our gracious hosts are dam bad losers; do you really want to take them on and win?