Told I owe money back on my benefits, data-entry clerk here

The agency says I reported earnings incorrectly, but I think I followed the instructions. This is my first time dealing with any of this. I did not notice any errors at the time. Who should I talk to first?

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

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.