Hi @kermitlau,
Welcome to our community forums and thank you for your first post.
Sorry to hear you experienced this with your self-installation. Was the great advice given by @Adduxi useful?
I am unable to locate your account using forum details to further look into your installation. Since posting, have you been able to reach our team on 0345 454 1111 who can rebook the install for you?
Please get back to me when you can.
Thanks,