My buddy was in Steam debt and he told me he had to contact their payment department and he ended up working out a deal where he acted as a footstool for Gaben for a weekend and then they waived the debt. Make sure you ask them for an itemized bill and they’ll usually find a way to work things out.

You just gotta wait until portal 3, team fortress 3, and half life 3 get released

Inspect element

Charge back maybe?

You add money to your steam wallet with a credit card, spend the money, then do a charge back on the credit card.