How long does it take to receive rejected application in the mail?

Any of you who got application rejected due to incorrect fees, no signature, or other paperwork errors, how long does it take to receive rejection notice in the mail?

Got it today. Sent them on December 25-26. Got it today on Jan 23. So almost a month.

I got it rejected as well because of incorrect fee. Got it back within 2 weeks of sending it.

2-4 weeks

How are you planning to send in the correct fee? A check/money order with the difference? Or 1 revised check/money order. I'm conflicted because I did a money order and it takes a while to get a refund.. Also, USCIS directed me over the phone to just send the difference. However, i'm reading posts about people being rejected because it all needs to be on one check/money order?

Pay the difference? Maybe they already cashed the money order. Its always recommended to send a check to confirm when it gets cashed. It doesn't have to be a checking account belonging to you.

I got the money order back of $465 so I'm assuming it hasn't been cashed yet. USCIS told me to resend the packet with a $30 money order to pay the difference I owe.

Next time I'm definitely sending a check. Lesson learned.

You just have to find out if money order was cashed or not I guess. They could have cashed out money order. All they need is account and routing numbers.

I bought a money order from my bank, and I only sent one of $495.

After I dropped off mine at the post office I went to work and 5 min before work I double checked the website.... I realized they changed the fee three days before . I have never driven so fast in my life before but I managed to get it back before they sent it