Post a photo of what you have and someone who knows about installs can comment.
No email.
Calling VM ( 0345 454 1111 ) is best done at 08.00 (Mon-Sat) or 09.00 (Sun) when you can normally get through quickly with minimal wait times.
You can also text them on 07533 051809 include account name/number and what the issue is – replies usually take longer though.
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John
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I do not work for VM. My services: HD TV on VIP (+ Sky Sports & Movies & BT sport), x3 V6 boxes (1 wired 2 WiFi,) SH2 in modem mode with Airport Extreme Router +2 Airport Express's. On VIVID200, Talk Anytime Phone, x2 Mobile SIM only iPhones.