Facebook is grossly overcharging small businesses on business advertising ads. I submitted an ad to Facebook specifying a total ad budget of $50. Three days later I discovered Facebook was charging me $50 a day, not $50 in total! They also sent me an e-mail unilaterally increasing my total ad budget to $250 without my permission. I asked them to reverse all charges from my credit card. They adamantly refused. They continued to bill me for one day after I cancelled my ad account with them. I wrote to my credit card company and they reversed the charges from my credit card. Facebook, in violation of their contract with the credit card company, then immediately kicked me off of Facebook for refusing to pay the overcharges my credit card company had also judged to be an overcharge. Small businesses need to be forewarned about Facebook's behavior.