<prompt> Human: I bought something for 0.64 on my Capital One card and didnt do anything else with it last month. Instead of getting a 64-cent bill, I got a -0.64 CHARGE ADJUSTMENT and a 0 balance. Is this normal? Can I get a free pack of gum every month and enjoy the high life from now on? I guess Im just surprised a credit card company would let even a few cents slip by...  <response>: My guess is that is it more expensive for the credit card company to process such a small payment to make it worthwhile. Happened to me once also. Not sure if they could stop you from doing that on the future, but remember the merchant accepting the card probably paid a higher fee than the amount you charged. 