Nokia India — delaying delivery

Address:

S.C. road, 781001

My name is nishir ranjan roy, from guwahati assam-781001
My jobshite number :[protected]/190805/005
I buy nokia 6.1 plus 3 month ago, but i got a screen problem a. So i visit at nokia care chandmari, guwahati, assam. On 27th july 2019. They said i will get it 10-15 days. After 15 days i call them this time they said that sorry it will take more 10-15 days. If my phone need 1 month to resolve than nokia care should tell me on that time when i visit at nokia care but they tell me lie they tell me 10 to 15 days. Is they are thinking that every customer is fool?
1st of all my phone is new just 3 month i used it and its became damage. Now they cant give it to me as soon as possible, if they tell me truth when i visit at nokia care than i can manege a alternative phone for 1 month but they just thinking that customer will always fool.
I have facing lots of problem because of your cheep service.