Omnicon Restoration Inc. No-pay for services rendered. Sub contractors beware. Joliet Illinois

I'm a one man operation. I refinish tubs & tiles. I was contracted by Omnicon to refinish a whirlpool tub and a large shower stall in a house they were restoring from fire damage.

Before I agreed to do the job, I asked about how soon I would be paid. I was assured that payment would be made as soon as the job was completed and inspected. I worked the whole weekend after Thanksgiving (Fri.-Sat.-Sun.) to accomodate Omnicons request for a quick completion.
I called them Monday Dec. 1st and was told to send fax an invoice. I followed up by phone to be shure they received the fax, and they assured me I would get a check within a few days. All through December I kept getting excuses as to why I can't get paid for the work I completed,( the girl is out sick, the owner is not in, the insurance company hasn't paid yet,)
I just keep getting the run-around and now the owner is not returning calls.

John
Lockport, Illinois
U.S.A.