From the terms and conditions.....
1. In addition to your rights to cancel during the cooling off period, either you or we may end this agreement at any time (including during or at the end of any minimum period) by giving the other 30 days’ notice. You can provide notice and end this agreement under this provision by:
1. dialling 0345 454 1111 from any phone (for information on how much this call will cost from a Virgin Media home phone visit virginmedia.com/callcosts. Call costs from other networks and mobiles vary); or
2. writing to Virgin Media Sales Operation Support, Diamond Plaza, Daleside Road, Nottingham, Nottinghamshire, NG2 3GG;
M350 over FTTP