Please do not quote billing system codes when asking about anything. They do not relate to the physical area you are in.
Code 31 is "Ex-NTL Franchises", so you could be anywhere from the south coast to the Midlands.
Nearest town will do, or the first part of your postcode.
Cable customer since 1993. Services: FH TV, Sky Sports & Movies (2xV6), Talk Anytime Phone, VIVID 350, Virgin PAYG Mobile
Phone customer services or wait many days for someone from VM to pick up your post.