I see now, the (S) denotes the Wings of the Goddess version, I stupidly thought it meant "south". But after researching it further, this makes sense since Allied Notes are from that expansion. I guess I was thrown off when I saw I could exchange vouchers for Allied Notes and figured that would take care of it. Oh well. I highly doubt I'll be at that point til they come around again in 6 months or so. No big deal. My mistake.