What to do? USPS intercept failed on massively delayed I-485 and now a duplicate i-485 is headed to USCIS

[NinjaChicken 5]

The USPS absolutely screwed us over and recommended we send our i-485 as registered mail with priority shipping back on Nov 25th. After it still hadn't arrived at USCIS in mid December we opened a case at USPS and they informed us that it was our fault for sending it registered and recommended we put an intercept on it and ship out a new set of paperwork at priority express, so we did that. Our second i-485 sent via priority express has arrived already, but we have received an email that the intercepted original package can't be delivered to our address and it is now headed back to USCIS. The useless USPS is claiming they can't see where the package is and can't even tell us why the intercept failed. We also can't even get USCIS to talk to us to advise us what to do because we don't have a case number yet.

What will happen if both sets of paperwork reach the USCIS? I already put a stop on the check in the original i-485 paperwork, so at least I won't be out that $1200+ hopefully, but we're worried it will get both sets of documents rejected and further delay her work permit. Does anyone know how we can contact USCIS without a case number to tell them to destroy the second set of documents if we can't get USPS to actually do their job and intercept it in time?

Edited December 24, 2020 by NinjaChicken

[Crazy Cat 41,888]

The package with the stopped check will be rejected.   The package which arrives with a valid payment will be processed. You can call USCIS, ask for "technical assistance" at all prompts.  That should get you to a live person.

[David and Anna 118]

Can we send our AoS package via Fedex or UPS, or does it have to be the United States Postal Service?

 

(I used DHL courier delivery for our I-129F and that worked, but I thought I read that AoS must be mail?)

[Ayrton 965]

2 hours ago, David and Anna said:

Can we send our AoS package via Fedex or UPS, or does it have to be the United States Postal Service?

 

(I used DHL courier delivery for our I-129F and that worked, but I thought I read that AoS must be mail?)

You can use any of those. But usps has one address and the other ones has another address.

[NinjaChicken 5]

On 12/24/2020 at 6:04 PM, Lucky Cat said:

The package with the stopped check will be rejected.   The package which arrives with a valid payment will be processed. You can call USCIS, ask for "technical assistance" at all prompts.  That should get you to a live person.

We were finally able to confirm exactly what you said with USCIS. Stopping the check on the package that is still in transit solves the problem. Thank you so much!

I will be avoid USPS like the plague at all costs in the future for anything that is important and go with UPS instead. Lesson learned! 🙄