Lenovo — lenovo yoga 710

Address:

Nagpur, Maharashtra, 440026

Companies do sell high end laptops we consumer do buy them but when it comes to service one question is common that company do not have parts.
My Lenovo laptop has gone for servicing since 22July 2017 but company does not have parts and there is no deadline for the completion of service only reply is wait parts are not available.
Somebody should lay down terms for number of servicing days. Or they should be fine for troubling consumers like this.