I do not follow up on quotes so also do not know the reason if i quote for a job and do not get it but you should base your quotes on what you are happy to earn i made the mistake last year doing a couple of quote a bit cheaaper thinking they where going to have the work done straight away when i had little booked in, the only thing was the next month i had to much work for less money so do not do this any more also i have quoted for work before and had the phone ring months later the only way to know for sure is to give them a call they can only say you havent got the job and you can ask for the reason sometimes people will not go with the cheapest quote did they receive the quote,I was told at the quoting stage to ask the customer if it would be ok to ring them in a week to disscuss the quote and i think by doing this quote to job rate would increase.
I know it makes good business sense to do this but i dont