Could I do this? Maybe w/the Rewards Points Module?

[ValhallaSoapGal]

I'm hoping to get some feedback from the Pros here :)

I'd like to offer my customers a "Buy x Get 1 Free" sort of deal. But, I'd like to work it like punch card system. Punch out all the holes in your card and get a free one.

So, I was wondering if there is a module like that available? Apart from the Rewards Points one? And if not, is there some way to make the Rewards Points module work like this?

I don't know where to find any detailed instructions on the Rewards Points module since someone else installed it for me. Any ideas, advice or steering in the right direction would be greatly appreciated.

Thanks!!

[ValhallaSoapGal]

I apologize.
This was meant to be posted in the General Questions section. If the mods want to move it that would be fine.