The way this boli seller counts money is a scam and nobody is talking about it

There is a woman at the junction near my street who sells boli and groundnut. Her boli is sweet, I won't lie. But the way she counts change will make you question your entire education.

Yesterday I bought ₦1,500 worth. I gave her ₦2,000. She started counting singles and coins, talking loudly, asking me about my day, then handed me '₦500 change.' I counted it at home. ₦380. Omo.

The thing is, I can't even confront her. Her boli is too good. So now I just carry exact change every time like a fool. Shey na only me this woman dey do this to??