getReference
getReference()
Gets the creditor payment reference. The reference is mandatory for SwissQR IBANs, i.e.IBANs in the range CHxx30000xxxxxx through CHxx31999xxxxx. If specified, the reference must be either a valid SwissQR reference (corresponding to ISR reference form) or a valid creditor reference according to ISO 11649 (“RFxxxx”). Both may contain spaces for formatting.
Returns: The creditor payment reference.