As its been in the loft sometime and since before the new "we want it back" policy was introduced - VM will have assumed you recycled it as per their previous policy.
Just put it back in the loft and forget about it unless a VM person on here, arranges to have it collected from you
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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.