Points System Module for cs-cart?

Is there a points system module for cs-cart?

E.g. a customer purchased $100 worth of goods, they then get 100 points on their account. 100 points = $2, they can redeem these points for a discount off their next purchase?

Yes they are called reward points.

If you have not yet done so go to your cs support area and download the manual.

It has been improved no end and gives you an idea of what is in the program.

The difficult bit is then understanding how changing this affects this and this. But it is a great start point and worth a skim through every now and then.