(1) Sections 663, 665 to 670 and 672 to 674 are to be applied accordingly to a contract for the management of the affairs of another, the subject matter of which is the provision of payment services, unless this Subtitle provides otherwise.
(2) The provisions of this Subtitle also are applicable to a contract on the issuance and use of e-money.
(3) The definitions made in the Banking Act (Kreditwesengesetz) and in the Act on Supervision of Payment Services (Zahlungsdiensteaufsichtsgesetz) are to be applied.
(4) To the exception of section 675d (2) sentence 2 as well as subsection (3), the provisions of this Subtitle are not to be applied to a contract for the provision of account information services.