OnePlus India — Repair not done for Mobile under OnePlus Screen Protection plan

I had purchased a screen protection plan of my OnePlus Nord 2 device at the time of purchase. Not only have OnePlus retail and service centre personnel misguided me through the process but have also been ineffective in resolving the issue for over a month now. I haven't received my handset till date, after it was collected by Oneplus Pick-up and Drop service on 17th sept. Despite having delivered a copy of my claim from the very beginning and repeated follow-ups from my side, OnePlus has been very incompetent and unhelpful throughout.