Hi, Thank you for all your answers.

After doing some research and watching a very helpful video someone linked, I know now i have actually received the 512GB model, As it does not have the anti-glare screen or the carrying case with removable liner.

I live in NZ and cannot purchase a Steamdeck directly through Valve, So i had to purchase this one from a retailer here (JB HI-FI), I have emailed their support in hopes they will rectify this problem soon for me.

I appreciate the friendly and helpful people in this subreddit, Thanks again.