Client from hell demanded 'low VOC' paint redo after I used Benjamin Moore Natura

Man, I swear some clients are just looking for a fight. Wrapped up this interior job last week, used Benjamin Moore Natura because she specifically asked for low VOC stuff, zero complaints during the work. Two days later, she's blowing up my phone saying the walls look 'patchy' and wants a full redo, even though it's drying fine. Spent an hour on site reassuring her it's the primer showing through her cheap drywall, but nah, she wants perfection or her money back. Now I'm stuck debating if I eat the time or just walk away from these picky types. Watched this Idaho Painter video on handling diva clients, and he said document everything, but damn it's exhausting. Anyone got a script for shutting this down without losing your cool?

Screw that, just tell her the 'patchy' is her imagination and charge her double for the callback if she pushes. Half these clients test you to see if you'll cave.