In the description of the Digital Deluxe Edition it says that by pre-ordering I will receive four season passes. Then it says "Season Pass redeemed when logging in. If players already own the current Season Pass, they will receive credit toward future Seasons up until Season 11. Any credits beyond...will be exchanged for an equivalent value of silver." I have the current Season Pass. I'm confused on what that will mean for me if I pre-order the new pass? And what is this "credits" that are talked about that can be exchanged for silver? Thank you for your time (and help).