Myntra.com — wrong product delivered

Address: 50067

I have placed order amazfit watch but they delivered me cheap jewelry.

I complained about the issue to customer care
Three times.

They sent me a. Mail we have resolved u r issue by declining claim as we sent write product.

I put a word to them again i received a wrong product please recheck the things.

They came up with same answer.

They can't help out on the issue further.

Sir i paid for a. Watch worth 10k
Order number[protected]-9463001
Online.

I paid through credit card.

What should i do.