Well the whole thing doesn't really add up as TAG have an on-line application system that generates automatic responses. Finger trouble perhaps? Years ago I applied for a position at TAG. When they changed to the on-line system I got a letter from them requesting me to apply through the website. I did and got an immediate response and even though I am now happily employed I still get job updates from them periodically.
TAG probably receives hundreds of CV every month with dozens of pilots sending follow up emails as well as phone calls. The Chief Pilot would be neglecting his primary functions if he were to respond to each applicant - simple as that.