Corbin does the whole seat construction, and I don't see on their website where they offer simple recovering. Their seats (at least the gunfighter I have) come with their own seat pan and it locks in place with a key rather than a hex screw like stock. If all you want is to have your own stock seat recovered, then any local auto upholstery shop should be able to take care of you.
Maybe Corbin hasn't gotten back with you, because they're considering your request but need to think it over first?
