Chasing a $1200 invoice on a garage repaint in rural Ohio - anyone else hate this part?

Just wrapped a two-day garage repaint job in rural Ohio using Sherwin-Williams Duration exterior, client owes me $1200 and ghosting my calls after promising payment on completion. Me and my helper spent extra time power washing off years of grime, and now it's radio silence. FML, this is why I stick to smaller residential gigs. Collections suck.