xfinity support

I received a letter from Communications Unlimited Inc. dated 09DEC25 explaining why, in your opinion, my damage claim Xfinity Case # [Edited: "Personal Information"] and appropriate reimbursement was unable to be processed. I made a complaint that several electronic items of mine and Xfinity's were damaged and no longer operable due to the common connection to Xfinity's coaxial cable. For example, in my living room Xfinity's cable box, my audio/video receiver, and my 65" OLED TV was damaged to a state of no functionality. Also, in my bedroom Xfinity's cable box and my 48" OLED TV was damaged to a state of no functionality. It appears the surge came through Xfinity's coax wire, then continued on to all devices connected to the cable box via HDMI cables in both locations. Xfinity's coax splitter and two signal filters were damaged and left inoperable at the same time. Why or how this occurred I cannot explain. I did verify the grounding connections with the investigator and found them to be correct and in good order so I have no reason to hold a previous technician's work to be responsible for this. Regardless who or what may be at fault, I am left with over $3,000 of failed equipment, the common cause being they were all connected to Xfinity's coax wire. I request we reopen this claim in an effort to identify what occurred and reimburse me for the expenses I've incurred because of no fault of mine. Please take a moment to consider my position in this and my financial loss. I look forward to working with you to identify the next steps in order to come to an equitable solution.