LAN LANPASS - Time for retroactive km credit

Hello,

I have a status match pending and wanted to wait result before crediting miles back to my account.

Does anybody know how long backwards I can credit them to the account?
I remember having read something like 2 month but couldn't find it anymore...

Also, will it be an issue that I did not have an account by the time I flew?

Thanks a lot.

You remember correctly... it is 60 days for flights before joining.