Home-connect pathetic accounts staff

Home-connect accounts sent me an email threatening to switch off my internet because of a payment arrangement that has been made and agreed on for a reinstallation. Going back on a email agreement by threatening me. I advise anyone considering home-connect as an isp to stay away until they give their accounts staff proper training on how to work with people and to stay true to agreements made. I have also sent proof of the payment made as per the agreement in addition to the debit order for my service.