Seeking Assistance from any St. Louis Cardinals associate

I bought this hand painted ball many years ago and would very much like to get Mark's auto on it. If any Cardinals fan out there could possibly direct me to a team associate or customer contact where I could send it in and ensure a legit signature. I would be grateful. A 100.00 donation to a Cardinals charity would gladly be sent.
Hopefully posting these correctly:

Hopefully posting these correctly:


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