Aprilia India - Bike taking too long to be delivered

March **, ****: I brought my Aprilia RS *** (TN ** BD ****) to Savirro Motors, Kovilambakkam for brake pad fixing and a "hot" indicator light issue. I requested checks on brake pads and coolant level.
Initial Diagnosis: Initially told coolant was fine, "hot" indicator might be an air bubble.
March **, ****: Informed the air bubble issue was taking longer.
April *, ****: I was told the bike was fixed, test-ridden successfully, and ready for pickup.
April *, **** (En Route to Pickup): Technician called to say the problem returned, requiring me to return home. The Area Service Manager (ASM) needed to inspect the bike for further analysis.
Following Week (Around April *-**, ****): I was informed the coolant water pump shaft gear had melted and needed replacement. This was deemed rider's fault and not covered by insurance (based on assumptions, as this was their first time experiencing this issue from the company fault so they have deduced it to be the riders fault ).
Spare Part Issue: I was told the spare part was unavailable and needed manufacturing and shipping from HQ, estimated to take around * weeks or longer.
Early April ****: I state I provided my approval for the purchase of the necessary replacement parts to expedite the repair, even on a paid basis. I instructed the service center to bill the parts to the manufacturer for faster arrival.
May *, ****: Aprilia informed me that the repair wasn't covered under warranty due to a lack of proper service history (despite me claiming the initial service was done within the kilometer-based timeframe). Aprilia requested and repeated asks my confirmation for paid repair, seemingly unaware of my earlier approval.
May * - May **, ****: Repeated emails from me expressing frustration over the lack of a concrete timeline for the spare part, the prolonged delay (over a month), the contradiction in the initial "fix" and subsequent "melted" diagnosis, and the condition of my bike at the service center. I also express my frustration to buy a brand new bike and see it in the service center for more than month while I commute with other necessary means and transaport for my day to day commutes. I also raised concerns about being denied access to see and photograph my bike. I repeatedly requested a firm ETA for the repair or a buyback of the bike. How a reputed company like Aprilia hasn't manufactured a spare part for a bike which was released last year why do they take more a lot of time to deliver my bike and cause inconvenience.
April ** - May *
Aprilia keeps dodging the questions without giving a concrete timeline for the delivery of the bike.
May **, ****: Aprilia informed me that the necessary parts have been billed and are expected to arrive by the end of the week.