Damn,this type of advertising is not targeted at all.
Do they think that the majority of football fans know anything about Bitcoin,blockchain,wallets,crypto exchange platforms,etc.?
It's targeted marketing. %90 of Turkish men watch football, it's the main sports here. Nationalism is high, that's why they sponsor to national team rather than Beşiktaş, Fenerbahçe or Galatasaray (That could result a big conflict for other fans).
When you are main sponsor of national team your advertisement is also in billboards, background of interview area etc.
They probably got more money than they spent for this advertisement already. Their daily volume is crazy.
They also have TV commercials 24/7 on big media companies. Whenever you watch TV you either see Btctürk or Paribu (another Bitcoin exchange) commercial. Bitcoin is very popular in Turkey generally. These ads are boosting recognition and have good impact on crypto currency reputation general.