I agree. I have been in business for 8 years. One of my large customers has had an ongoing project in the past 2 year period. It has been t & m. Bidding this job would of been quite an undertaking because things are changing everyday. That is all the detail on that I will provide. Well after 2 years of T & M all of a sudden they are checking prices. They seem to think T & m means no material markup. They are dillusional. They are hoilding three large invoices and have been checking supply house rates. Noe they want an audit and all supply house invoices. I am afraid the only way to deal with this now is through legal litigation. Un ****in beleivable