Apple iPhone 15 Pro max 256 GB Color Change Request Denied

My order for iPhone 15 Pro max 256 GB via Apple Store. It wasn't until later that I realized the color selection error paths. I wanted to change the order from black titanium to natural titanium. When I haven't received the product yet and the invoice hasn't even been issued yet, I get the message from the purchasing branch saying "it's too late to change the colour". Treat like using similar firmware. The delivery hasn't even happened yet. We were going to return the product and they would refund the money. You will order again in our extension color. You made a raise of 5 thousand TL. Now how do I return it and reorder? Order Number:W1305384789 Order Date: 29 November 2023