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6 years ago
Schau mal hier: https://telekomhilft.telekom.de/t5/Vertrag-Rechnung/Hatte-schon-jemand-eine-Abrechnung-der-Cellfish-GmbH-ueber-15-96/td-p/3310275
bzw. hier: https://www.verbraucherzentrale-niedersachsen.de/themen/internet-telefon/fehler-auf-der-telefonrechnung
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