Audio will not playThe usual causes in order of likelihood, and what to try before writing to us.Images are not loadingBroken pictures in exams or articles — how to tell a caching problem from a real one.My progress did not saveWhere progress is stored, why a number can differ between devices, and how to force a sync.Trouble signing inForgotten passwords, unverified emails, Google sign-in, and accounts you did not mean to make twice.Installing the app and using it offlineAdding Mandarin Temple to your home screen, what works without a connection, and what does not.Payment and billing problemsA payment that failed, a plan that did not activate, or credits that have not appeared.
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Troubleshooting
When audio will not play, progress will not save, or something simply looks wrong.
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