Islamic bank licensees must not commence a business relationship or undertake a transaction with a customer before completion of the relevant customer due diligence measures specified in Chapters 1, 2 and 3. However, verification may be completed after receipt of funds in the case of non face-to-face business, or the subsequent submission of CDD documents by the customer after initial face-to face contact, providing that no disbursement of funds takes place until after the requirements of this Chapter have been fully met.