HTC India — appalling customer service and incorrect resolution provided from the service centers. handset in warranty not working..

Address:

Kolkata, West Bengal, 700028

Hi,
I wish to make a formal complaint about the fact that my htc handset is turning out to be a mess. Model number: htc desire 728. I have used a number of handsets so far, the worst one is htc desire 728.
My phone is not functioning properly from a long time now, and even after taking the phone and giving it to the service center twice its still not working at all. The main problems that i am facing is:
1. Even when it is fully charged, it gets switched off automatically.
2. Applications gets re-started automatically.
3. Unable keep one task in background and use another app (It is not a smart phone any more)

I first submitted my handset to the service center on 10/06/2017 the screenshot of the bill is attached to this complaint. I paid ₹690 for the service, while my phone was in warranty and after i received it back its still not fixed. Second time, i submitted it on 07/10/2017 and they again returned it to me on 09/10/2017. Yet again unfixed.

Its appauling cutomer service and disgusting product.
I want the refund for the money that i have paid so far. Or i want a different handset of same price or above.

I want an immediate reply as the warranty of the handset is going to be over by this november.

Contact me on : [protected]/ [protected]
Email: [protected]@gmail.com