Which ticket topics can I request a change for?

What documentation is required for changing the ticket topic for a defective product?

Can I request a topic change without documentation?

What happens if the required documentation is incomplete?

How soon can I request a topic change after ticket creation?

What if the issue can’t be proven with a test report?

Can I change the topic for delivery-related issues?

What if the customer doesn’t reply or use the return label within 10 days?