Overpayment letter from the unemployment office - any advice?

After 13 weeks of benefits I got a notice saying I must repay some of it. I do not usually post, so bear with me. The letter mentions an appeal window and a repayment plan. Has anyone disputed one of these?

I asked for a waiver and a plan in the same call, and they gave me both forms. It was less scary than I expected.

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.