A1593960364517 , via OnePlus 9R , Jan 23, 2022 : This new launch product oneplus buds z2 is not added in oneplus care app so i cant get replacement of the product. Please its a request to add this device . @OnePlus @OnePlus care app
Liehjan , Jan 24, 2022 : If your buds are faulty, you can contact customer support through other channels for now.
Sampath_Kumar_ , via OnePlus 5 , Jan 27, 2022 : If you have bought from the official OnePlus website then check into the orders for replacement.