This could be for different reasons, here you could check a few:

- You are using gold to revive, check your battle records and see if that’s reasonable to believe.
- You have bought something and don't remember, to see this, check your cosmetics and other in-game features such as paint, for example.
-Check if you have a screen recording showing your gold amount, if that’s true, you could reach us and we could see what you have done with gold recently.

Regarding these possible reasons, you can contact us, and then, we can see if something happened. But remember, we can check your true gold amount, the one you had, and the movements you have done recently, so we will investigate everything to help you.