We agreed with the customer finish and done touch up and fix all ceiling garages area, walls, and ceilings in dining area, all corridors and one ceiling of one bedroom since was damaged for water leaks in the storm. We done all of these and we paint the ceiling and walls they looks like new. Then we requested money to the home owner for progress and she reject our 50% money request saying that we have things left to do and somethin that is true, we still have to go back and install one toilet, one bath exhaust fan and few ceiling round trims . other than that everything per scope is done. She just start arguing with us and she refuse to pay the invoice and now she say "you dont what to much headaches, i dont want to rest done and i will pay you this amount" this doesnt work like this, the customer can't cut the price in invoices or estimates, she can pay wherever she wants. the price is the price upon she agreed with. Im trying to force her to let us get into and finish tis little things cause is only one day left of work and she still have $5,000 in her hands that she dont want to pay. what i should do with this?