Told I owe money back on my benefits (San Diego)

After 9 weeks of benefits I got a notice saying I must repay some of it. I worked as an accounts payable clerk before 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.

Keep everything in writing and save the confirmation numbers. It made the follow-up calls so much easier.