Nokia India — nokia 8.1 mobile call drop

My following complaint is pending with nokia.

My complaint no. #1174701
Order no.[protected]
Model : nokia 8.1
Imei no. [protected]

I my above complaint is pending with nokia mobile care ([protected]@hmdglobal.com) for last six months but they have not resolved my complaint.
I have purchased nokia 8.1 mobile in june 2019. From the date of purchase, i am facing calling issue as call drop, caller can't here my voice, poor voice calling, mic related problem. So i send my mobile for repairing to nokia mobile care. I have also submit my mobile to local nokia care but my issue not resolved. I have made more than 60 emails to nokia care but they are not giving me proper reply. As per nokia care my mobile is still with nokia care, so i unable to submit online repairing request to nokia care.
Nokia care has also confirmed that your issue is still pending.

Tushar pandya