I submitted e notification of application acceptance with my N400 documents last week. Since I used Fedex I know that the application was received last Thursday Oct 19th morning. However, I have still not received an email from USCIS whereas the form says that they will notify me within 24 hours of acceptance of the application.
This morning (Monday) I checked my credit card and I see that it has been charged the application fee. Do I need to be worried that I have not received the email as yet? Or is this the norm?