When Zoie_P says it may affect your price she is being a good VM employee. What I would say, as anon-VM employee who has tried this approach is that your will either save virtually nothing or your price will go up. That is because taking a phone line gives you a massive discount on the bundle price. Loose the line and you loose the discount. Why bother for what will only be a small saving at best (last time I tried it was a fiver).
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