See if anything on the link helps - call the number in it .
https://www.virginmedia.com/help/wifi-maxYou call 0800 064 3850 to order them
Or a VM person will respond here in a few days when they get here
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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.