Billing and payment processes

• What happens if an organization subscribed to an OpenAIRE service becomes an OpenAIRE member? How does that affect billing and payment?
• Are payments accepted via credit card?
• Who is responsible for paying bank transaction fees?
• What is the accepted currency for payments?
• The subscription is paid, what's next?
• There was a mistake on the invoice with my organization's name or address. Can this be corrected?
• Is VAT included in subscription plans?
• Is payment available in instalments?