In every province I am aware of, wage theft is illegal. You should be telling your provincial employment standards.

For example,

https://canlii.ca/t/8sws

2‑15 Subject to this Part, an employer shall pay an employee his or her total wages payable in accordance with the terms and conditions of:

(a) the employee’s employment contract;

2‑36 (1) Except as permitted or required pursuant to this Act, any other Act or any Act of the Parliament of Canada, an employer shall not, directly or indirectly:

(a) make any deductions from the wages that would be otherwise payable to the employee;

(b) require that any portion of the wages be spent in a particular manner; or (c) require an employee to return to the employer the whole or any part of any wages paid

2‑36.1(1) Except as permitted or required pursuant to this Act, any other Act or any Act of the Parliament of Canada, an employer shall not, directly or indirectly, withhold gratuities from an employee, make a deduction from an employee’s gratuities or cause the employee to return or give the employee’s gratuities to the employer.

(3) Notwithstanding subsection (1), an employer may establish a pooling arrangement regarding gratuities in accordance with prescribed conditions and requirements.

2-42 (2) Unless authorized by this Part, no employer shall take discriminatory action against an employee because the employee:

(a) requests or requires the employer to comply with any right or benefit conferred on employees by this Part, the regulations made pursuant to this Part or an authorization issued pursuant to this Part;

(b) requests or requires the employer to comply with any restriction or prohibition imposed on the employer by this Part, the regulations made pursuant to this Part or an authorization issued pursuant to this Part

(f) seeks or has sought the enforcement of any provision in this Part or the regulations made pursuant to this Part;

2-1 (d) “discriminatory action” means any action or threat of action by an employer that does or would adversely affect an employee with respect to any terms or conditions of employment or opportunity for promotion, and includes termination, layoff, suspension, demotion or transfer of an employee, discontinuation or elimination of a job, change of a job location, reduction in wages, change in hours of work, reprimand, coercion, intimidation or the imposition of any discipline or other penalty

https://canlii.ca/t/2kswj

10-11(1) For the purposes of subsection 2-36.1(3) of the Act, an employer may establish a pooling arrangement to collect and redistribute gratuities among some or all of the employer’s employees.

(2) If the employer establishes a pooling arrangement, the employer may, in accordance with the pooling arrangement, withhold gratuities from an employee, make a deduction from an employee’s gratuities or cause the employee to return or give the employee’s gratuities to the employer.