Game credit / bonus punch

Hi, I'd like to know why we can't use our game credits and bonus punches to buy diamonds and coins. I think this should be one of the benefits due to the Big Fish Club members.

I think you do get a discount if you are BFG member.
My guess as to why they don't flat out let you use credits and codes is because it would be a complicated accounting and technology nightmare because of the type of game this is. That is just my guess.

crazybluegirl200 is right: They used to have a 30% off for Game Club members.
I don't know if this has changed.

There is a little discount for the members when you buy diamonds or coins, but I think they still cost too much, but no way to use your credits. I think they'd do something about that.
Anyway, thanks for your answer!

I bought two lots of 10 diamonds, but as I live in the UK my bank charged me £1.50 for each because of the difference in currencies. I have been a Game Club member for many years, not the fault of BF, even so, I won`t be buying anymore.