Does your ticket say SITO or SITI or SOTO (top line towards the middle)? This may become important for you later. I am just a dumb passenger who happens to fly a lot, but I think they broke a few rules in issuing your ticket and this may shed some light on the matter for the rest of us. Perhaps the rules have changed in a favourable way (maybe an EU rule forcing sales throughout the EU, thanks to your BLQ origination -- which doesn't help with those from IST or CAI).