Coolpad India — late serving of my handset

I had bought coolpad cool 1 from Amazon in August 2017. On 27 June some vertical white lines appear on my handset screen . Then I submitted it to my near by service centre that is nehru place . After soo many days whenever I call to ask about my phone they always said the status is pending it is going to be a month.
My job no. is CT[protected]
Name Avneesh
Phn no. [protected]