Bajaj Electricals — Water leakage from water heater

Technician visited but water leakage is not stoped (left side of power light in bellow photo) please do needful at the earliest to redress my grievance please

The company has reply in messanger
"As per the update from our service team, the product is out of warranty and irreparable. We regret the inconvenience caused. In case of any further assistance, please feel free to call on [protected] / [protected]."
But i dont want warranty. They are telling that the damaged water tank is not irreparable i.e there product is only use and through.
Same problem waa faced by me on 2017.
Please resolve my grievance

Previously i made a complain vide KOL[protected]-1 on 15/06/2022, the same technician visited and rectified the display light of the heater. On that very day i.e after your technician left the leakage of water started. First i called the technician on his phone number [protected] but as he not came i was made another complain vide Complain number KOL[protected]-1.
Please do the needful, as your company is a reputed company

I have contacted Bajaj personals several times. 1 st they told that product is out of warranty. But when i asked that i will pay all the required charges for repair of tank. They told that i have to contact toll free numbers to know the detail charges, but when i contacted toll free number they told costing is not know.
Sir, my question is that 1. Is bajaj heater is use and thrown product.
2. The life time is only 5yrs 2 months because last time we faced same problem within warranty but I have to pay 1.6 thousands for my product repair that to after a compain in this page.
3. Will i have to buy one new heater again.
Please do needful for grievances redressal