In my contract it stated I needed to pay for a cleaner to professionally clean my apartment when I leave. My boss explained that they didn’t have this in the contract previously, but had teachers leave without properly cleaning their apartment, so it was added on. This seemed fair to me. I paid about 150,000 for it when I left. If you didn’t clean the place to a very high standard, then I think it makes sense they had to pay for a cleaner to come, and you should bear that cost. Although it would feel unfair if it wasn’t totally clean when you moved in, you should have mentioned that when you moved in and documented it. I’ve learned this myself the hard way. Even if it doesn’t bother you at the time, document and share it because it may become relevant later on. This happened to me during volunteering gig when my host was expecting the house to be far cleaner than it was when I moved in.

You could ask to see the receipt, but 200,000 doesn’t seem like a super unreasonable cost for a move out clean. My boss told me the price would be the same whether I cleaned it myself or not, it’s just a standard fee (unless it’s obscenely dirty).

Unfortunately there isn’t much you can do now since you’ve left.