I recently purchased 2 premium sailor upgrades and was charged 100 olives.
I logged onto the game and checked my item box for the items i purchased.
There were no premium sailor upgrades.
Instead there were 2 +10 veteran increases.
Somehow, i bought 2 premium sailor upgrades and recieved 2 +10 veteran increases.
I checked my payment history in the NF Store and it says i purchased 2 premium sailor upgrades.