Square Marketplace Dispute — customer filed fraudulent chargeback

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Illustrative scenario prepared by my practice.
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Hypothetical question

I'm dealing with a situation and need some guidance.

customer filed fraudulent chargeback. I've been dealing with this for about 12 months now and the situation isn't improving.

The amount being held/disputed is approximately $15,582. I have tried contacting customer support 2 times with no resolution.

What's the typical outcome in situations like this?