Overpayment letter from the unemployment office - what worked for you?

The agency says I reported earnings incorrectly, but I think I followed the instructions. It has been a long 16 weeks. The letter mentions an appeal window and a repayment plan.

Thanks for writing this out. I went through something close to it last year, and it settled down once I kept a simple log of every call and form.

Read the letter for the appeal deadline and act on it, even if you think you will end up repaying. Then ask about a payment plan.