Quotation for roof renovation requested. Project m...

Quotation for roof renovation requested. Project manager came to have a look and came back after a week with the quotation. After three weeks still nothing heard so start contacting by mail / telephone with the project manager and the general numbers / email addresses. I think I've called about 20 times in two weeks. Never called back. If you don't want the project as a company, say so. But this kind of ghosting phenomenon is a testament to the unprofessionalism of this company.