Hi, I bought a townhouse 6 months back from MAG...

We would like to inform you that about filing complaint against the frauds, you can go to the Public Prosecution and file a complaint as it could considered fraud, so the prosecution will decide the judgment according to the investigation. So we advise you to file a criminal complaint in the prosecution for investigation and they will refer it to the court.
As according to the UAE Penal Code states:
Article (10) from procedure Code may not be a criminal case in the following offenses lifted only upon a written complaint from the victim or oral Al Or his legal representative:
1. Theft, fraud, breach of trust and hide things earned them if the victim or spouse of the offender was one of its assets or its branches were not these things reserved by judicial or administrative or burdened with the right to another person.
2. The minor shall not be extradited to a person who has the right to request and to dispose of the authority of his or her assignee.
3. Refrain from performing alimony, foster care, nursing or domicile.
4 - Insulting people and throwing them.
5. Other offenses provided for by law.
The complaint shall not be accepted after three months from the day of the victim's knowledge of the crime and its perpetrator unless the law otherwise provides.
Therefore you can file a criminal complaint against that person to follow him and arrest him.
Note that if there is conviction and trial in the criminal case, then you can file a civil case against this party and claim your money, as well as compensation for all damage to you. That compensation is estimated by the court.