I was in sales, and I learned a long time ago that you have to sell yourself. This means, if you aren't, apply in person. Shake hands, look people in the eye, and say your name repeatedly. "Hi, my name is Peanut, how are you? (Conversation goes) Well thank you very much. Again, my name is Peanut, and I look forward to speaking to you soon.
I hope this helps. I don't have much to give but advice....