Where an agency refuses to remunerate an employee for work done for no apparent reason, is that tantamount to slavery under the Thirteenth Amendment?

Where an agency violates its own employment policy by refusing to reinstate an employee to his/her former position without reason, is that action covered under 5 CFR 1201?

Whether an agency's refusal to remunerate an employee for work performed and violation of its own employment reinstatement policy without reason constitutes slavery under the Thirteenth Amendment and violates 5 CFR 1201