Versions of s. 128.1(4)

Unless otherwise provided in a collective agreement or other agreement, employees who are paid wages or benefits under subsection (1) or (2) may be required by the employer to repay those wages and benefits if it is determined, after all avenues of redress have been exhausted by the employee who exercised rights under section 128 or 129, that the employee exercised those rights knowing that no circumstances existed that would warrant it.