Hey Jagan,
The only way to tackle this is,
1st Email : Ask him friendly, if he could check if the 190 EOI was successful and all that.
2nd Email : Show him that you are willing to pay for the process again if the EOI was successful.
I got my 189 invitation while I was in Melbourne on 489, I applied; however, it got rejected as my documents were expired on the date of the invitation. It's a very tricky one. So if you are planning to apply for 190 while on 489, make sure you keep all your docs up to date. (ACS, IELTS etc)
No, you cannot apply for those documents after being invited.
Hope this helps
toot