That's my question to - you didn't realize the $4500 charge when you were checking out?
I've seen premium names pop up when I've searched for them but I've always made sure to uncheck them.
That is the issue here. They are automatically checked and added to your cart.
We (those that have been domaining for a while) are used to this as we sometimes deal with those annoying check boxes daily. If you are not in-tune to this, the name is automatically added to your cart.
So, the real issue I think is how, a month later, you can possibly prove "I didn't mean to buy it". Yes, the CC bill comes a certain time of the month. But, proving your intentions (to buy or not to buy) is very difficult to prove.
In essence, how can you prove, "I did not mean to buy it!"
It will be interesting to see the outcome.