Lenovo — Mis selling of laptop

Address:

Valsad, Gujarat, 396002

Dear sir,
I have booked a laptop from cps valsad with confirmation of getting it on next day after advance tsken by them. But they were not able to deliver it on next day. And next to next day my sister was there to receive it. But they gave her black laptop instead of silver, which was confirmed while booking. I want to complain about late delivery and misselling. Is it right place to complaint? Or give me necessary step for that.
Thank you