Just got me a refill key and was wondering if theres any FAQ out there that tells you the code to see the last win/volume change etc, the pub i work in has a hill billionaire bell-fruit-games (rubbish i know) and a qps machine

when i insert the key it just tells me the amount to refill the hopper (which i find is very useful for determining if its worth playing or not! some people seem to disagree on here!) is that all i can do with these keys because the other info has been disabled? (read that somewhere )

any other tips appreciated