If you have a valid salary claim, you should file your claim online at TADM as early as possible, as this will give you a higher chance of recovering the salaries owed to you.
If your employer sends you to the airport without paying your salary, approach the immigration officers at the airport for help.
You should not be afraid of making a claim even if employer threatens to send you home. MOM will allow you a chance to find alternative employment if you have a valid claim and appropriate enforcement actions will be taken against the employer.