So my dad got 100$ worth of bitcoin back in 2009, he got a 'verification code' to his old email but forgot about it afterwards. -snip-
The "
verification code" part is not promising, because if it's from 2009, then he must have used the official client which doesn't have a verification code.
Pls help lol

Σ(  ̄□ ̄||)
all I know is that he got some sort of email to confirm it, verification code was probably a wrong choice of words lol