I've always wondered if Axiom keeps a running tally of credits and of course, if it expires.
We've had folks over to audition speakers in the past (forum names include BruceH, Jordan) plus one or two others that we know purchased products, but frankly i don't recall how much credit i may have received.
I think in one or two occurrences i got an email from Axiom noting some credit, which i probably saved, but still, i haven't' tallied anything, don't know if they still know, or if that credit has an expiry.
"Those who preach the myths of audio are ignorant of truth. Research begets reality."