Hey Kiki,

Based on our system logs, I can see you're studying two subjects - Physics and Economics - but your billing shows you only purchased a subscription for physics.

I wanted to clarify that Sudostudy offers subscriptions per subject. Since you bought the subscription for Physics, you only get access to Physics content. For Economics, you would need to purchase a separate subscription.

This information is outlined on our pricing page. Let me know if this explains the access issue you're experiencing, or if there's something else I can help you with.

I have also sent an email to you about it.