If you had destroyed some of their property then the employer could withhold from your check the amount it would cost to fix the damaged property. However, since you did not damage the property they cannot withhold your check. You need to file a claim with the justice or municipal court where the employer is located. The filing fee is usually $95, and the employer can be liable for that amount if you are successful. This is not an issue you need to hire a lawyer for though because of the small amount of the claim.