Cleaning lady asking for extra $$

[Luke Carl]

This is the second turn in a row my cleaning lady has asked for an extra $25. She sends blurry cell phone pictures of the "extra mess" or "oh my god they had a party" and I say "ok" just to avoid confrontation and to keep her happy because I'm 4 hours away and need her. But it's costing me money. If i go to the guets and ask for extra it'll just make them angry and offended. The one time I tried it, and it was for two holes in a comforter, I heard "Maybe you need a new cleaning service" so I bought a new comforter and moved on. 

Does this happen to you? How do you handle it?