Contract number:  Service contract conditions of December 2018 I.5.3  Payment of the balance 1. The contractor (or leader in the case of a joint tender) may claim the payment of the  balance in accordance with Article II.21.6.  The contractor (or leader in the case of a joint tender) must send an invoice in paper format  for payment of the balance due under the contract, as provided for in the tender specifications  and accompanied by the following: (a) a list of all  pre-existing rights to the  results or parts of the  results or a declaration  stating that there are no such  pre-existing rights , as provided for in Article II.13.4; (b) the final study as specified in point 1.4 of the specifications (Annex I);  2. The contracting authority must approve the submitted documents or deliverables and pay  within  60 days  from receipt of the invoice.  3. The contracting authority may suspend the time limit for payment specified in point (2.) in  accordance with Article II.21.7. Once the suspension is lifted, the contracting authority shall give its approval and pay within  the remainder of the time-limit indicated in point (2.) unless it rejects partially or fully the  submitted documents or deliverables.]   [In Belgium, use of this contract constitutes a request for VAT exemption No 450, Article 42,  paragraph 3.3 of the VAT code (circular 2/1978), provided the invoice includes the statement:  ‘Exonération de la TVA, Article 42, paragraphe 3.3 du code de la TVA (circulaire 2/1978)’.]  [In Luxembourg, the contractor must include the following statement in the invoices:  "Commande destinée à l’usage officiel de l’Union européenne. Exonération de la TVA Article  43 § 1 k 2ème tiret de la loi modifiée du 12.02.79. ‘In the case of intra-Community purchases,  the statement to be included in the invoices is: "For the official use of the European Union.  VAT Exemption / European Union/ Article 151 of Council Directive 2006/112/EC.’]  I.6. GUARANTEES  I.6.1. Performance guarantee  I.6.2. Retention money guarantee  I.7. BANK ACCOUNT  Guarantees are not applicable to this contract.  Performance guarantee is not applicable to this contract.  Retention money guarantee is not applicable to this contract.  Payments must be made to the contractor’s (or leader’s in the case of a joint tender) bank  account denominated in EUR, identified as follows:  8 