Look outside your property for the wall mounted VM "omnibox" - usually brown or grey. From there a cable will come out and enter your property through a hole in the wall. Trace wher that is and on the other side of that point is where the connection should be made.
I t may be hidden in a cupboard, decorated over or just be a loose cable.
If you cant connect to that or cant find it, a previous occupant may have removed and didnt tell VM. You will have to call in and arrange to change to a Tech install rather than self install - if you struggle to pass security a VM person will respond on here in a day or two
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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, 1 WiFi, 1 on PA) Hub5 in modem mode with Apple Airport Extreme Router +2 Airport Express's. On 250Mbps, Talk Anytime Phone, x2 Mobile SIM only iPhones.