I'm waiting to see how WGT handles this. Any respectable business would give back a refund when THEY wrongly (mistakenly) took money for a non-existing product.
Let's see how WGT is run and what kind of customer relations they have. I'm still waiting for a reply to an email I sent yesterday, doesn't look good so far.
I KNOW in my business if I made a mistake like this, that I couldn't refund the money fast enough to my customers and make sure that they were satisfied.
At the very least WGT should have refunded the credits immediately, anything less is really unacceptable and poor business practice.