(4)To ensure effective and transparent procedures for the prompt, fair and consistent handling of complaints by holders of asset-referenced tokens and other interested parties, the issuer of asset-referenced tokens, and where applicable, third-party entities, should acknowledge receipt of a complaint clearly mentioning the date of its receipt and, where an electronic complaint form is filed, provide the complainant with a copy of the complaint. Furthermore, the issuer of asset-referenced tokens should assess whether the complaint is admissible and contains all relevant information necessary for the complaints investigation and promptly request from the holders of asset-referenced tokens and other interested parties any additional information needed for the prompt and effective investigation and handling of the complaint.