Lenovo — Service Undone since last 10 days

Address:

Jamshedpur, Jharkhand

Hello,
I'm Sai Lohit a resident of Jamshedpur. My laptop got faulted on August 25, 2020. I complained in customer support after diagnosis they confirmed it to be a motherboard issue. They dispatched my part and assured a service by 27 August, 2020. I called the local engineer on August 28, 2020 they mentioned there is some delay and surely be done by 31 August, 2020.
I got a part delivery mail from their end on August 30, 2020(Saturday). Monday i called the engineer whose number was mentioned in the mail they mentioned the whole process might require a day to process and assured me to be done by September 1, 2020. I called him today(September 2, 2020) the engineer is giving me statement saying part undelivered whereas i've the mail of it getting delivered and again delaying.