Most companies/sites will place a "Microcharge" (where they take money out of your account) or "Microdeposit" (where they deposit money into your acxount). This is done to verify the legitimacy of the account (sometimes a company/site will even ask you to verify the amounts). It's another way of identity verification (like answering challenge questions, taking a picture/video of your face, or uploading your ID). They usually reverse the charges within a few days.
