Smoothcuts Painting

Smoothcuts company provided a quote on April, for the exterior of the strata and our strata agreed on the quoteI've requested for detailed quote since we are not familiar with paintingThey finished the work and suddenly the company request $extra and saying they did extra days of workI've met them every day while they were working, they never mentioned about added workThe last day, he requested in very unprofessional and disrespectful way, telling me that they provided highest quality painting jobBut they never provided how many days that they were projecting to work, we have no idea what extra they didTo me, it is not honest and also very disrespectfulUntil now, he is responding by email in very sarcastic and rude manner, although I sent explanation of the complaints in respectful way