What I used to do when I was in construction as a subbie was to complete and return the more desirable tenders as requested. I would then find out, usually with a call to the architects, all the other main contactors pricing the same job and then call the estimators and forward it to them. After that I would regularly call a main contractor estimator and ask if they'd been successful and if not who was.
You then have the contractor who has the contract and it's no problem to find the name of the QS who will have a copy of your tender. Then you have a name to pester and have a far greater chance.
Just a thought because I hated pricing for someone who was also pricing so I made sure the the contract winner had my tender and it quite often paid off.