Consumer Redressal

I have submitted my phone to xolo customer care since march. I got my phone back on 2nd april. But i discovered that the replacement was made with a defective part. so i resubmitted the phone on 6th april till today i have not received my phone. From 20days long i am hearing that they are waiting for the part to arrive(Delhi HO) The company makes a fifteen days policy of service but its been months for me. I purchased the phone at 13000 and they offered me XOLO omega 5.5 by pay additional cash of 6000 which MRP is 8999. I would be highly obliged if i could get any help from you guy my new workorder nymber is 310001271901