Can I try Dify without a paid subscription?

How do message credits work?

Who is responsible for team payments?

How do I cancel my paid plan?

Where can I find my invoices and receipts?

Can I pay for Dify Cloud Service subscription with a corporate bank account or other business payment method instead of a personal credit card for internal enterprise use?

If my Professional plan resources reach the limit, can I purchase more vector space or team seats independently?

Is Dify secure? Where is my data stored?

How to obtain Self-hosted edition?