Sorry, I know this is slightly off topic, and apologies if it has been answered elsewhere - I have looked! Thinking about travel in economy, would the price of seat reservations for the two seats together be the same for Saver and Flex tickets, or would the Saver ticket person pay more?

Also, is there any way to find out how much the seat reservation would cost? I did a dummy booking as far as where you type in your name.