Am I the only one dealing with client's check bounced after delivery??

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Illustrative scenario prepared by my practice.
For informational purposes only. This is not legal advice. Laws vary by jurisdiction. Consult a qualified attorney for advice specific to your situation.
Hypothetical question

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

client's check bounced after delivery. I've been dealing with this for about 15 months now and the situation isn't improving.

The amount being held/disputed is approximately $2,920. I have tried contacting their legal department 4 times with no resolution.

Do I have a strong case? What should my next steps be?