I was charged but my purchase is pending

You will need to contact the game manufacturer and find out why your charge is pending.

However, if it is just pending, that means that a hold has been placed on funds in your account, but no actual charge has been made.

This is from Capital One, but it's a good explanation:

Capital One: What is a credit card hold and how does it work?

If the transaction was not completed then what were you charged for and what refund are you looking for?