Best place to buy Vivo X200 pro

I am an existing user of x100 pro and planning to upgrade to X200 pro. What's the best way out there to exchange my phone and get this new one?

I remember that X100 pro was available at discount in offline store when I purchased it. Can anyone help me with the right price and place to get x200 pro?

Also, please share your user experience if you're already using it. Thanks!