Flipkart — Defective product given

Address:	P VINAY
Website:	FLIPKART

I have purchased a router of 750 mbps supported one.But iam getting only 80 mbps speed.My data plan was 300mbps.Though rising many complaints, they told that there will a technician visit and later on they will return/refund the product .but no technician came. I have purchased the product on 22nd june.I have been following up the situation from first week of july.but no response.And they have created a return request on 13th of july (latest complaint) .kindly resolve my issue.