I went to check my reward card after buying $50 and it's credited me $72 instead? Not that I MIND, but I think this is a fault you probably want to address, haha!

EDIT: Editing to make it sound more polite!

It did this on the last card too, I assumed it was intentional.

It goes by the amount of CSC bought (one stamp for every 1,000 CSC), not the $ amount spent. It might be intentional?

I'm planning to buy some before the offer closes, so I'd like to know if this was meant to happen or not. It'd actually be pretty good incentive for people to buy CSC during the offer period, on top of the extra CSC and item! :)

I admit to not noticing it on the last card, haha. But thanks for telling me that, guys!

This was intentional - they said it last time. Also, your subscription counts as well if you have a monthly GA with CSC subscription.