I'm looking to get an iWork Serial number for my Macbook?

Hi there

I had to have the hard drive replaced & need to re-install iWORK.

I bought the Mac it came with iWork already installed but I have no box or record of the program so cant just re-install also I got it in early 2013 so it doesn't qualify for the "Up-to-date-program" update.

The computer came with the program installed but Genius bar have been no help & my Apple account doesnt have record of it because I didnt buy it separtly.

I would buy a serial number but cant find anywhere to buy an online version of the program only Amazon.com box versions!

Apple really should just give me a serial number as I imagine they'll know computer came with the program ... are other people having this problem?

Please help!

Thanks Tommy