Overpayment letter from the unemployment office after 15 years as a forklift operator

I received a letter saying I was overpaid about $650 on my claim. I worked as a forklift operator before this. I cannot afford to repay it all at once. Has anyone disputed one of these?

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.