I'm not a customer but a Sub-Contractor company. I...

I'm not a customer but a Sub-Contractor company. I have a small drywall company and last summer I was contacted by Colette the Project Manager Assistant offering tons of work for my company but we couldn't comply with the insurance requirements they required back then, 2 million GL plus aggregate 2 million more, Work Comp 1 million, auto commercial 1 million and lots of endorsements more. This summer I called her, and asked that if they could assured us we would obtain work from them we can go ahead and buy the extra coverage they were asking. She send me all the documents and send it to my agent too. I comply with all the requirements and my agent send over the certificates, spend more then 4 thousand dollars but once they received everything I never hear back from her or anyone from the company. I email so many times, no reply, I called, no calls back. Now my concern is what do they do with my information??? I hope that this review helps any other contractor out there that is looking for work to be aware and do not send anything to this unethical company unless they have a job site schedule.