Mivi — Repaired product not returning

I Bought Mivi On 26 July 2021 After 6 Month O[censored]sage My Product Get Damaged And Complaint On Mivi For Repair, Then Courier Is Placed By Mivi, And On 30 January 2022 My Courier Is Delivered Then After There Is No Status Of My Product Repair Update From Past Approx One Month I Mailed Them For Update Status But Only Recorded Mail Come From Them " Your Product Is Under Testing " I Am Fed Up By Mivi