Coolpad India — Mobile phone under service center crossed 2 months

Address:	Hyderabad, Andhra Pradesh
Website:	www.coolpadindia.com

I have given my mobile to coolpad - hyderabad (Begumpet) service center on jan 23rd 2017.
Till now im not getting a proper response from the coolpad customer support. Evertime i call, they are postponing the delaying the service. Not estimating proper time also. I have mailed them around 10 times... But there was no proper response. My phone was purchased on dec 2016. Atleast i asked them, to refund my money / replace with a new phone. But still, they are replying with the same answer.. Please wait.. Please wait.. Bear with us...
I dont have any trust that they are going to return my phone.

Please find attachments

Phone service jobsheet num is js[protected].
Coolpad customer num: [protected].
Attanced the service copy.
*unable to upload email history
Please help me out to come out of this mental harassment.