Micro transactions packs increase in price as you level up. For example A level 15 player will have offer pack priced at $7 but for the same pack a level 20 player will have it priced at $30 to $60 and as you progress in the game and level up more even the 30 to 70 buck packs turn into $70-140 for the same packs a level 10 to 15 player can get for 6 to 30 bucks.