1. Apart from the provision of payment services, payment institutions shall be entitled to engage in the following activities:
(a) the provision of operational and closely related ancillary services such as ensuring the execution of payment transactions, foreign exchange services, safekeeping activities, and the storage and processing of data;
(b) the operation of payment systems, without prejudice to Article 35;
(c) business activities other than the provision of payment services, having regard to applicable Union and national law.
2. Where payment institutions engage in the provision of one or more payment services, they may hold only payment accounts which are used exclusively for payment transactions.
3. Any funds received by payment institutions from payment service users with a view to the provision of payment services shall not constitute a deposit or other repayable funds within the meaning of Article 9 of Directive 2013/36/EU, or electronic money as defined in point (2) of Art
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