Ripped off workers, owed hundreds of thousands of dollars from embattled fast-food giant Domino's Pizza, are still waiting to be repaid almost two years after the underpayment was discovered.

Since allegations of rampant underpayment were exposed by Fairfax Media, Domino's has insisted it has "zero tolerance" for underpayment and that its top priority was to ensure workers got their entitlements.

But Fairfax Media can reveal one store, which was found to be underpaying workers $200,000, still hasn't contacted all workers or repaid them, according to the franchisee.

A July 2015 audit of the store – now 20 months ago – commissioned by Domino's and conducted by human resources firm Allan Hall, found multiple breaches of workplace regulations including overtime not paid and unauthorised deductions from employees' wages.