In the event that any service worker is paid less than the compensation to which the service worker is entitled to under this subtitle, the service contractor shall make restitution to the service worker for the amount due, and shall forfeit and pay to the City a penalty in the amount of $50 per day for each employee so underpaid. Provided, however, that the penalty shall not be assessed for wage violations to any individual which amount to a total of less than $1 in any payroll period. Each day’s violation shall constitute a separate offense. On recommendation of the Wage Commission, when a service contractor has paid fines on more than 3 service contracts in a 2-year period, the Board of Estimates may prohibit a service contract vendor from participating in the bid process for up to 3 years. City Code, 1976/83, art. 1, §26A(d)(3), (4) Ord. 94-442