The requirement for supplementary documentation may be due to internal identity verification policies, legal regulations or to comply with money laundering prevention standards. This documentation may include additional identity verification, proof of address or any additional information that will help confirm the authenticity of the transaction and the security of the parties involved.
It is also applicable for higher or cumulative transfers in excess of 3,000€ per calendar quarter in online mode and 2,499€ in face-to-face mode.