Payment is handled exclusively via PayPal. The payment processing terms, conditions, and user rights are strictly governed by PayPal's User Agreement. As services are intended for European users, the Client acknowledges that any transaction fees, cross-border fees, or currency conversion commissions arising from the use of the PayPal service are independent of the Contractor and remain the sole responsibility of the Client. The net amount credited to the Contractor must equal the exact standard fee stated in clause 4.1.