Interior cleaning

Hi,

Recently bought my first car, a 2020 CX-5 Grand Touring Reserve with white parchment leather interior. Was pretty heart broken when I saw that the guys that park my car in the garage had left some blue pen marks on my white leather seat. Can you ask for your wisdom on what is the best way to clean the pen marks off the leather. Tried with some soapy water and microfiber to absolutely zero success... Would alcohol help?

Thank you,
 
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Phoenix
:
2020 CX5 signature
I've had good luck with simple green on almost everything. The problem might be discoloring the spot you clean ending up lighter than the rest of the car
 
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2018 Mazda CX-5 Grand Touring-Premium Pkg. Soul Red
Just the start of issues keeping the white clean, good luck with that.
 
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