I had gone this problem many times. And it's very dis appointing that clients are invited us for a interview and we responded their application. and after clients reply a few message. They just disappear! I am agree with Mr. David, just a little respect in our side as a contractor. If the job is already closed, Just informed us. It's not too much to ask in the part of the clients. Being BUSY is not the issue their. It's their responsibility as a client to a contrator.
Just expressing in my side ..