how to prove precence on june 15th?

I just received a RFE letter, and they want me to prove I was here on June 15th 2012, can i prove days leading, and days after?

Yes many have done this. I suggest you try to collect as much as possible since it's for an RFE. Days before and days after would be just fine.

Remember they must have your info on it. Best of luck!

that Day i bought one of those prepaid cards, but it took 10 days for them to send me one with my name on it, its crazy one day out of 20 yrs lol

Do you still have the receipt of it? Maybe it has a special number on it or something.

Hahaha I know exactly what you mean! Same thing happened to me I didn't know how I was going to prove my presence that day. Ever since then I save everything and make sure I have something for at least each month. lol

i sent them the receitpt in the original package, but they said its not valid since i doenst have my name on it, since its the card they first give you, Im checking my facebook, that day i had a lot of stupid status updates kinda embarrasing lol, but it will have to do

i also got one . i let my aunt who ive been staying with write an affidavit saying ive been here ever since and ive also had another letter from my daughters grandmother and sent in my daughters birth certificate and a dentist excuse letter ...
good luck . if u have any babies ssend in their bc and let anyones youve known write affidavit letter bc soon as u sendin your evidence you approval will be soon after @!! good luck !!