Lack of supporting evidence to charges and communication issues

In June 2022, I received an outstanding charges statement from Volatano Meters in South Africa. Despite multiple requests for signed and dated meter readings, I only received invoices and statements. On May 30th, 2024, a billing agent indicated they could provide the supporting documents, but I have yet to receive them. On June 18th, 2024, Volatano Meters threatened to report me to the credit bureau. Although promised the documents, they mention they are not signed and dated. This situation raises questions about the accuracy of their processes and procedures. Clients who question charges seem to confuse them, and they appear unsure how to handle such requests. As consumers, we have a right to evidence, and their reluctance to share information is concerning. It also leads to further inquiries: Are records properly kept? Why the active avoidance? Do other clients not query charges, or is this a delaying tactic? Furthermore, their communication has been subpar, as they ignored my requests since 2022 and only started responding late in 2023. Invoices and statements alone are not sufficient evidence when a consumer queries charges. To date, they have still not provided the requested information.