Terrible service from Suzuki Bruma

Terrible service from Suzuki Bruma. I had purchased a Super Carry from this dealership and when I got home I found a humming noise coming from the gearbox. I contacted the salesman and was asked to bring it around which I did. They had to book it in the following Tuesday and I was told that they will deliver it that afternoon, they then called to say they will deliver the next day and then the next, even after telling them that I will be leaving that Thursday afternoon, which they promised they will do. Needless to say that never happened and now three weeks later, I am still waiting. On the rare occasion that the salesman answers my call, he is always waiting for the driver. Anyone else that I speak to refers it back to the salesman. This is got to be the worst service that I have experienced in purchasing a vehicle. I will never use this dealership again.