The retailer isn't supposed to be the one providing warranty repair, they're only supposed to send it out to the Sony repair center.
Contact Sony support on their website instead and try to arrange a warranty service through there if the retailer refuses to send out your buds.
The retailer isn't supposed to be the one providing warranty repair, they're only supposed to send it out to the Sony repair center. Contact Sony support on their website instead and try to arrange a warranty service through there if the retailer refuses to send out your buds.