Am I the only one dealing with square terminated my account??

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Illustrative scenario prepared by my practice.
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Hypothetical question

Has anyone dealt with something like this? I'm not sure what my options are.

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

The amount being held/disputed is approximately $18,598. I have tried contacting their legal department 10 times with no resolution.

Should I hire a lawyer for this or try to handle it myself?