Not a complaint but Delta Flight operated by WestJet. Party of 4 on same reservation. It let me pick the WestJet equivalent of C+ at booking, but at check in only the Platinum Medallion got Zone 1 for boarding, the others (no status), although still in the upgraded seats, were Zone 3. This is the opposite of what happens on Delta. No C+, but all 4 would be SKY boarding.