Voltas — Complaining about the poor service quality of the parts to be repaired under warranty

Purchased Ac 1.5 ton window in the month of April.
A week back fan motor stopped working and service request was raised.
Very poor quality of the service since last 7 days I have not received the part which was dispatched from Gurgaon to sonipat.
It is really hot summer and since last 7 days I am unable to use the AC purchased for the obvious reason.
No response is being received about the part transit and when can It be fixed. Really disappointed with the service.