Nokia — nokia 7.1 with manufacturing defect

I bought nokia 7.1 phone 1 and half year ago and i regret why did i wasted 19k on that i started facing problem after 3 months, my phone charging was loose, after few days it becomes very difficult to charge phone. I visited service center and they repaired the phone and returned, again after 1 month i started facing same problem, i bought new charger again as per their suggestion and it also could not resolve my problem, when i called them it was lockdown and they refused for repair, not its warranty is over and now they said it will be repair on chargeable basis.
I want to complain on nokia they are selling the product without quality test and most of the customers are facing charging issue and company is not not taking the responsibility.
I will never buy any nokia phone in future, also i will recommend everyone not to buy nokia phones since they are cheating customer.
Please help me to refund or exchange this defective phone.

Regards,
Shagun rana
Rana. [protected]@gmail.com