iBall — no service for compbook iball i360 fhd,

Address:

Hyderabad, Andhra Pradesh, 500089

It's almost 2 months over since i gave my compbook laptop in service center in hyderabad. Service center person cannot create job code as the serial number[protected] not showing in the iball crm software. Informed through iball customer care email multiple times no solution, called customer care they don't give any valid answer or solution just simply tell they will call back never call back or keep on forwarding the call and put on hold forever.
So i went to service center and let the service center guy to speak to customer care directly, customer care people escalate the issue to the concern person, he speaks to service center guy and said will solve the issue. But when i call back after a week about the issue. They say no response from iball.
The last caller id with iball customer care call center is ib-cc141207
Please iam looking for immediate resolution as it's already too late.