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 center in Mayapuri, 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 center they told me that they have cleaned break shoes etc. & advised me to visit again. my office is in Gurgaon & i hardly get time to visit the service center frequently...but somehow i went again there after few days/ weeks, this time they told me that they have ordered some part under warranty & it will take some time & advised me to visit again....after some period i again visited your service center 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 vehicle i 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 problems 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 switch off compressor for longer duration & we have no option but to open window. Your service center says everything is ok with the A/C system. - Cabin noise no improvement. Do you think you sold a defective vehicle to me? Or all above problems are part of standard product? Or your service center is incompetent? Today I thought of writing a detailed review/complaint with dates/service history so I tried to log in on Renault India app but I realized I can't do so because in your records my phone is wrongly entered as xxxxx x0649 (& i cant receive otp on the wrong number) ... earlier I used to get SMS from your service center on my correct mobile xxxxx x0639 but during the last visit I didn't receive any message (even I didn't receive any details of service done & they didn't give me any paper to sign at the time of delivery after the repair). So why did you change my mobile number in your records? Hopefully, I will again go to your service center tomorrow (Sunday 27th Jan 19) for showing problems of brakes etc... What do you think ...should i sell the vehicle? Do you have some control over your dealers? Should I lodge a complaint with consumer forum etc.? Thank you With Best Regards Arun Kumar Gupta 98xxxx0639