VS20R9048T3 Jet 90 premium Vacuum cleaner

The vacuum cleaner arrived in pretty bad shape. In particular, there were some pretty hard knocks on the hose and scratches everywhere. When I notified the after-sales service, they offered me 10% compensation (€35) or an exchange, which I thought was very nice. Then, after discussions with the internal department concerned, it seems that it was only €20. I insisted that a figure had been agreed (€35) and since then nothing.