Upon the owner's instructions, the restaurant manager served a notice of termination on a cashier who has been employed in that restaurant for more than 5 years. Effective immediately, the notice was based on the alleged insubordination of the cashier. The owner had ordered the termination immediately after learning from the manager that the cashier was asking whether the restaurant was remitting Social Security System contributions deducted from employees' salaries.

Will an action for illegal dismissal filed by the cashier prosper? Explain briefly. (2020-21 BAR)