Samsung India — Samsung a8 phone not working properly since purchased

Address:	Haridwar, Uttarakhand, 249401
Website:	Samsung.com/in

Respected sir,
My name is vikas shikhola from haridwar. I had purchased a samsung a8 phone from batra communications, haridwar on[protected] for rs 31, 500.
Since the day one it is not working properly. Most of the time when i try to access emails or internet from this device it usually hangs. Not only this it also has voice problem. Half of the time i have to disconnect the phone because the other person on the phone is unable to hear my voice.
Several times i have visited samsung customer care center in haridwar and all the time they have made me disappointed. Every time they tell me my mobile is working fine and internet makes phone hang. And ask to me to use internet as minimum as possible. But i have purchased this expensive device to access internet otherwise this device is useless to me.
Now since last few visits to the customer care center the staff has been so rude that i am feeling very embarrassed to visit them again. This device has some serious issues. It does not work good. Even the camera hangs and the picture quality often is so worst that even a picture on rs 1000 handset could be better of compared.
I request you to please either return my money or exchange this handset. Mobile details are (Samsung sm a-800 batch: [protected])
I shall be thankful to you
Regards
Vikas shikhola
[protected]