How long is it going to take USCIS to send me an email notification that they received my application. it was delivered by USPS on the 2nd of October and have not heard anything till now.

@Anca they did sent it. Thanks @Victoria and @Moruff

Hello, USCIS prefer that you use THE website, you will have to register. Or From the USCIS website, click on my case, will need Alien or a notice number.. I hope this helps. 🤘

Did they send you the receipt yet?

I have sent my EAD renewal since October 15 and I've not received acknowledging or receipt up till this moment