Of all the PPC networks Bing/Ads is the worst when it comes to charging customers. I cant make ass out of what they are doing. They run charges all over the place, when they see fit, that is. They run $1 charges separate from other charges and do it in a fashion that i cant identify it with my invoice. WTF! If you use this outfit for advertising be prepared to to get your credit card/debit card in my situation, RAPED! Its utterly desperate of them. They really need to do something about it. Adwords has a better system. I add money to my account when i see fit. If there is no money there my ads don't run. Simple. WTF is wrong with these people?