Myntra.com — I'm complaining about misbehave from a myntra delivery executive

Address: Kolkata, West Bengal, 700002

A myntra delivery executive called me to delivery a product. I was not at home at that moment. I asked him about price and ask him to visit my house and delivered the product.
At home my mother was not aware of the amount of that product. He was asked the executive about the product. The executive clearly denied to inform and did misbehave. He told that do complaint whatever i just cancelled your order if you says that you will be complained.