PG Glass Bryanston has appalling service

Do not go through PG Glass Bryanston. Their service is appalling, They contacted me to make an appointment to replace my windscreen. An appointment was made just to be cancelled the next day. I then receive an SMS with an appointment time that they did not schedule with me. When I try and call there is no answer. I had to change my work arrangement to suit them because I cannot get hold of them to change the appointment. This is unacceptable. You should contact the client first before making an appointment that just suits you. I still have had no contact with them.