It's for sure frustrating when they tell you they are going to let you know, but they never call back. That being said it's like wonder wiper mentioned...I know I've gotten quotes from contractors and I usually only call the one I want to hire for the job and not the others. But I never say "ill let you know" it's usually "I'll look it over with my husband and if were interested we will call you"....I've stopped waiting by the phone. During the interview I make it clear that it's first come first serve and that I only hold a spot once I have cashed their deposit. If I don't hear from them, too bad and I don't call them back either usually.