You can set daily, weekly, and monthly purchase limits to help manage how much you spend on WOW Coin packages.
To set or update a limit:
Go to Spending Controls (or open My Profile and select Spending Controls).
Under Purchase limits, choose Daily, Weekly, or Monthly, and click Change Limit.
Enter your new limit in the Enter new limit field.
Click Update limit to save.
Good to know:
Any decrease to your purchase limit takes effect immediately.
Any increase to your purchase limit will take 72 hours to come into effect.
You can change your limits at any time.