Sm1smom
Super Moderator
Thank you for your reply : )
Where should I send the copy of receipt to? Do I need to have a cover letter for that?
In the mail they sent to me, there is only one document that is "Adjustment of status form" which wrote my name on it (I attached the photo).
Is that the RFI look like normally?
You did not receive a message from USCIS contrary to what you posted, what you received is from KCC. You need to contact KCC and find out why a new payment is being requested. You can call to start with, then follow up with an email with proof of payment you already made.