OnePlus buds z replacement via OnePlus 7

  1. W1561556305283
    Cupcake Jan 18, 2022

    W1561556305283 , via OnePlus 7 , Jan 18, 2022 :
    I have sent my buds z for the replacement from last 60 days and got 2 times replacement and both was wrong product. Instead of buds z, the old model buds were delivered. Emailed OnePlus and no reply. Customer support is not helping. What best I can do?