Install Battlefield 3 on Fresh Windows 7 64bit system

 I buy PC BF3, downloaded via Origin played for few days then...

Hard drive die..... I get new one... Install all software Win 7 ....

I install Origin.... Log in to it and, since then I can to it any thing I have proof of purchase I have code but I get this message 

This code has already been used 

Than I went to http://forum.ea.com/eaforum/pm/inbox.page and I send message to one of EA_OriginSupport 

t is the best way to visit help.origin.com. 
A live advisor will assist you to solve your problem. 

An another way to find the advisor: 
Please Login Origin Client --> Click Help --> Origin Help -->?Live Chat 

Where is Live chat ?? In application is not than where is it, on web is not there as well ?

Since I have ask him to give me link or any directions I didn't get any respond !

Pleas any one help me !