The Enquirer has analysed the creditors report by administrator PricewaterhouseCoopers which reveals that hundreds of staff have been left with unpaid expenses.

Former Rok workers are unlikely to ever see a penny of the expenses cash and nearly 3,000 ex-staff are also owed nearly £6m in wages.

The Enquirer revealed last month that trade contractors are owed around £280m in Rok’s debt mountain of £360m at the time of its failure.

The banks were owed £72.6m in outstanding loans and PwC expects they will suffer a “significant shortfall”.

Hundreds of subcontractors and suppliers are resigned to never seeing a penny for the money they are owed.

For a full list of creditors left holding worthless invoices visit http://www.pwc.co.uk/eng/issues/rok.html

The administrators are currently auctioning the remaining Rok assets but the proceeds will hardly make a dent in the huge debts.

Insolvency experts said construction employees should file their expenses claims weekly to avoid building up large claims which won’t be paid if a company goes down.

A number of Rok staff were owed more than £1,000 in expenses with the biggest claim topping £20,000.

One expert told the Enquirer: “It’s never a good sign when a firm starts slowing down expenses payments.

“Make sure you file them regularly so the amount doesn’t mount up and if the company starts missing payments don’t be shy in asking why.”