If a company asks a staff member to leave and provides one month's notice pay, the company deducts PF from this amount and includes it in the full and final statement. However, in Form 16, the company does not reflect this PF deduction. After a year, they claim that PF does not apply to notice pay and that they never remitted this amount to the PF office, despite deducting it from the employee. What is the best course of action to recover this deducted amount?