Disappointing service

I am very disappointed with the company. I requested them to install a device in my car on 8 Feb 24. To date, on 27,my car is still driving without a tracker. They called over 3 times to reschedule but they never pitched. On 26 Feb they called again but I refused their help because they are questionable. I even tried to call the branch so that I can do a walk in but the number went to call Centre, when I requested a direct line to the branch, the consultant told me that she only has that number that I called. I don't think they will respond in time during the time of need. Sooo disappointed.