continues breakdown

June 2015 I bought new motorbike from cayenne sport . July 2015 I had a petrol tank leak which was supposedly repaired. First week September 2015 I had second petrol tank leak cayenne sport supposedly repaired. Second week December I had 3rd petrol tank leak of which my bike is still to be repaired and cayenne sport just gave feedback that I might get bike back end of January 2016.I always have to go to cayenne sport premises to get feedback about the progress on my bike repairs as I have realised cayenne sports don't consider my case as course for concern due to unending breakdowns I am experiencing with their product since I jotted down my signature to do business although before cayenne sport used to call me daily until purchase was done.I am forced to make alternative transport plans to get to work while I pay for a defective cayenne sport product