Missed the oath ceremony

[pilee]

Need help please please. I missed my ceremony because I didn’t receive the note. When I got the the note and open it, the day of the ceremony is one day before. So what do I do now please. I am so worry. Please anyone can help me out

[N400questions]

Looks like you posted three times.

That's frustrating for you. But no worries.. no big deal. Especially since it wasn't even your fault.
Just write them a letter and explain that the notification came too late (send it certified delivery if you want a paper trail).
They will simply schedule you for the NEXT available oath ceremony. Hopefully they will fast-track you to avoid any delays.
Stay calm... absolutely no big deal. :-)