Repaired exhaust -damaged Aircon. and bad attitude

I took my car for catalytic converter change of my car. Got the car back and pipes of my air-conditioner have been bashed and cracked. the aforementioned air-conditioner was serviced and repaired just 2 days prior to taking my car into POWERFLOW . A day afterii get my car back from POWERFLOW Pinetwown I discover that my air-conditioner is not longer working AT ALL. so when I take it back to POWERFLOW the manager Mr Lance Massey tell me stories about how his employee discovered the cracked pipe before they worked on it. neither the employee nor Lance brought my attention to this during the course of the day or when I collected my vehicle. I find this unprofessional and for a brand as large as \POWERFLOW"to have such poor standards of workmanship and ethics is appalling. I have got all receipts from the air-conditioning services. and then he basically tell me that he cant help me sort out the problem and swore at me. """