Overpayment letter from the unemployment office - 14 months and counting

After 6 weeks of benefits I got a notice saying I must repay some of it. Thank you in advance. I did not notice any errors at the time. Are payment plans possible?

If you are unsure, free legal aid in your area may help for this kind of notice.

Thanks for writing this out. I went through something close to it 14 months ago, and it settled down once I kept a simple log of every call and form.