How many days it takes to get receipt number for H4 EAD application?

USA H4-EAD
1

I have applied for H4 EAD and sent all the required documents on 6th June at Lewisville, tx with Overnight delivery.

How many days in general will it take to get receipt number?

2

It takes about 1 week to 10 days to get the receipt number in mail box, sent by USPS mail.