Lost 2000 gold for no reason?

I have recently made a new account to get a fresh start with my stats (deleted old account already) and i had 15000 gold from the tutorial and completing some challenges I am only in 2 games atm a 22player map (tutorial map) and a 10 player road to war europe map and i don t spend gold in these games. I logged on to see i only had 13000 gold and was confused. maybe i accidentally spent it without knowing but i dont think i did i looked at me troops and nothing was gold rushed and nothing was bought with gold so idk what happened to it (not a major issue i only use gold to make elite AI games)