sounds to me like you were asking for a specific "creation date" which is exactly like cpu binning. In the cpu overclocking world, great overclocks are achieved and reported by the "bin" or creation date of that specific batch of cpu's, this is listed, model number blah blah. Many companies have a policy to never fulfil a request by a customer that either asks or wants specific bins. (probably too much hassle, do it for one customer got to do it for everyone) It's probably one of their policies, i know your gonna say well they could just tell me that too, who knows, i'm just throwing out theories.
