Moved into a unit and it was DIRTY still. Wrote on...

Moved into a unit and it was DIRTY still. Wrote on my walk through that the place was dirty still. They called today and told me that my idea of cleanliness must be different than theirs. I don't know anyone who's idea of clean is cheerios in the corner, dust coated crown molding and ceiling fans, and cobwebs on the plant shelf. They said I could hire someone to come out. and I said that would be fine, I would send them the bill, but they will not do that either. I asked if we could compromise and just have the ceiling fan and plan shelf cleaned, as that is high up and would be very difficult to clean on my own, but they are refusing that as well.
The place I toured was clean, but was told the one I'm now living in had someone still in it so I could not tour. The lady on the phone today said I shouldn't have signed the lease then. However, I was under the impression from the office that if I did not sign, I would not be getting my condo.
If I hadn't put so much money down and hadn't signed a lease saying that I had to pay x number of months' rent, I would just turn around and leave.