Authentication key help

[AgentPikmin]

My sister (Pagie BL_ID: 26517) has forgotten her authentication key and the email sent was lost by deletion. Is there any way to retrieve her key without buying another copy of the game?

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[FrogFreak]

Have you tried this?

[AgentPikmin]

Have you tried this?

Thanks Frog. I'll test it out and unlock if it doesn't work