Charged less for a large purchase

[MattJack]

Depending on the size and the scope of their operations it could go either way. If you really want to be a dick, simply cancel that card and order a new one. They won't be able to get any funds from you and will probably just write it off. However, they could report you to a collection agency and take it even further.

The best bet is to have the funds for a couple of months. If they never charge it, just get a new card and go on with your life. Most large businesses won't go through the headache of suing and chasing such a small sum. They'd rather can somebody, then write it off.