H1b acknowledgement number

USA H1B Visa
1

Hi

i have filed for extension of H1b visa on 29 march 2019 in normal process.My I 94 expires on 10 April.i have to apply my wife’s visa before 10 April.For that i require ack number…

1…when does i get the acknowledgement number.

Thanks

2

You will NEVER get it, your employer would get it. Talk to them.

3

thank you…
is employer get ack number in 7 days