Non compliant and closed tickets

Guys, I need a senior figure to contacting me. You have installed something that I received a COC for and it doesn't work. I have reported this to you and since then, no feedback. I called in and opened tickets. They are being closed without any feedback. What is going on? You guys came over around 4 times to replace or repair something. It's crazy and unbelievable how you ignore service requests or assist when a technical fault is present. I have kids at home and run international businesses from home. You are preventing me from working and placing my kids life's at risk if your installation is not compliant. I am dead serious and need someone that can make decisions to call me. If not done today, I'm cancelling the debt order and you guys can come pick up the items, I'm done with begging for service. Cost of no trade will be passed to you due to preventing me from working. I'm dead serious, enough is enough look at ticket 99894