What determines how many coins you receive after winning a battle? It seems to alternate between x18 and x216 for me. Get 18 coins but 32 trophies makes no sense as they were obviously higher ranking than me. Next match I get 216 with 29 trophies. Frustrating the times battling only for coins and get only 18. I’d rather it not even match me at all than to waste my time for a whopping 18 coins.