Poor service and defective product

Hi Renault DL XC XX 7054 Duster Diesel I purchased limited edition duster adventure from your dealer Mayapuri Delhi in Jan 2017 through company lease After purchasing it I noticed that there is some annoying noise in brake paddle. After 2-3 weeks of purchase, I went to there service centre, they assured me that issue will be resolved. After repair, I noticed that brake paddle sound has no improvement but there was another sound started coming from front tyres after applying brakes...upon calling the service centre they told me that they have cleaned brake shoes etc. And advised me to visit again.... my office is in Gurgaon and I hardly get time to visit the service centre frequently...but somehow I went again there after few days..weeks, this time they told me that they have ordered some part under warrany and it will take some time and advised me to visit again....after some period I again visited your service centre and told them that regarding difficulty in changing gears...again same story...parts are being orderd please leave your vehicle or visit again... Since I have purchased this vehicleIi found many problems in this vehicle...your service center replaced repaird many things...like clutch plate brake shoe etc....but they are unable to resolve any of the problem so far....as i dont find time to go your service center every other day...i have no choice but to use substandard vehicle with heavy risk... - Gear shift problem still there - brake noise still there - Brakes are not reliable at all - Your technicians do know how to switch on off front fog lamps...do you know where is on off switch? - Airconditioning has some intermittent problem, sometimes during summer it swith off compressor for longer duration and we have no option but to open window. Your service center says everthing is ok with the AC system. - Cabin noise no improvement. Do you think you sold a defective vehicle to me? Or all the above problems are part of the standard product? Or your service center is incompetent.