If the prime contractor dosn't take care of a damage to one of there customers they will charge back the contractor. They should do the same if they don't pay a sup they should charge back the contractor for all the work he's done for the prime contractor. Why should the p contractor get paid if he's not paying for the work the sup is doing.
This is CABL.com posting #162690. Tiny Link: cabl.co/mQuc