Fraud, cheating and theft

Interiors we accepted for 3,20000.75% we have to pay according to the work progress and 25% after the completion of work and finishings.But we paid maximum amount more than 75%. But he demanded total amount without completing much work. We told him to visit the site itself.But next day he didn't visit and he uninstalled all the cupboards and without informing taking key from watchman.