Standard Invoice

Please note that payment of the registration fee is required before a final commercial invoice can be issued. Once your payment is complete, please email your billing details to congress@nsa.bg to request your invoice.

 Proforma Invoice

If your institution or organization requires a proforma invoice to process the payment, please send the requested billing details below to congress@nsa.bg before making the bank transfer.

Required Billing Details

To ensure your invoice is processed correctly, please provide the following information:

• Full Name(s) of the Participant(s) (for whom the fee is paid)
• Company / Institution Name (official name for legal entities)
• Company ID / Registration Number (if applicable)
• VAT / Tax Number (if applicable; please include the country code for EU VAT)
• Billing Address (street, postcode, city, country)
• Financially Responsible Person (name and contact email, if different from the participant)
• Special Reference (any specific text or purchase order number required by your institution, if applicable)

Important Note on Bank Charges: All transaction fees, bank transfers, and currency conversion charges must be fully covered by the sender. The net amount received in our bank account must equal the total registration fee.