Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

Paid credit card bill, but money didn't leave my checking account [duplicate]
You probably don't need to call the bank. Today is Sunday, so three days ago was probably Friday (or Thursday depending on how you count the days). Banks normally don't post transactions on weekends - and transactions that do happen on the weekend sometimes don't get posted until Tuesday. I would give it till Tuesday and then call them if you still don't see it show up on your account.