Mahindra & Mahindra - Same Problem Persist After Repairing No responce to complaint filed with Mahindra and Service Center

I am writing this e-mail as a formal escalation regarding the persistent unresolved issues with my vehicle, the repeated failure of the service team to provide a permanent resolution, and the highly unprofessional handling of this matter by the concerned Area Manager.
The primary issue is that the “Zip Zap Zoom” mode has been malfunctioning and remains non-functional nearly **% of the time. This issue was first reported on *th July **** and started immediately after the silver box-related recall was carried out on the vehicle. Despite multiple visits, follow-ups, and assurances, the problem remains unresolved after almost two years.

Further, during the last service visit, a software update was performed by the service center, after which additional critical issues started occurring:

Apple CarPlay no longer connects properly
The phone connectivity has become unreliable
The infotainment display frequently goes completely blank
I have already shared multiple videos clearly demonstrating these issues. More importantly, these problems have been reproduced and verified at the service center itself in the presence of the Co-Technician and the Service Manager. Therefore, there is no ambiguity regarding the existence of these defects.

What is even more concerning is the conduct and the Area Manager's response. Instead of taking ownership and ensuring resolution:

He repeatedly states that these are “known issues.”
Indirectly suggests that customers are expected to “live with it until a fix is available.”
Raises his voice during calls and, when highlighted, dismisses the concerns as merely “customer perception.”
Such responses are completely unacceptable, especially when the defects have already been technically reproduced and acknowledged by your own service personnel. This reflects extremely poorly on customer handling and raises serious concerns about the company’s approach toward product quality and after-sales support.
At this point, I require:

A detailed root cause analysis of all reported issues
A permanent and definitive resolution timeline
Written confirmation of corrective actions being taken
Immediate intervention from senior technical and customer escalation teams