Square Marketplace Dispute - Square terminated my account

I've been trying to resolve this on my own but I'm stuck.

Square terminated my account. I've been dealing with this for about 7 months now and the situation isn't improving.

The amount being held/disputed is approximately $9,578. I have tried contacting their legal department 3 times with no resolution.

Has anyone been through something similar? What worked for you?

I've dealt with this before.

In my case, it took about 2-4 months to resolve. The key was hiring an attorney to send the initial letter.