[Resolved]  Homeshop 18 — product issue - dispatching wrong product to customer

Dear Sir i am durgendra singh from ghaziabad , last month i had ordered a SONY MICRO VAULT 16 GB (Model: USM 16 GQ in aluminum body order no[protected] .but on opening the parcel. I was shocked that Homeshop18 sent me different model: SONY MICRO VAULT 16 GB (USM 16 GU /BC in fiber) which market value is maximum 700 RS whenever my order was SONY MICRO VAULT 16 GB (USM 16 GQ in aluminium) which market value is 900 to 1000 RS. this is forth time i am sending product through courier but they are not taking any kind of action whne i am calling they are saying provide me proof of courier , what i can do now please take action against this shop thank you