The PM denied making the abusive outbursts the book accused him of, but was then confronted with claims from an anti-bullying charity that staff from No 10 had called their helpline.

英国首相否认书中指控的侮辱性辱骂行为，但是反欺凌慈善组织声称首相府的职员曾拨打他们的热线电话。

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Anti-bullying charity Bullying Online warned that intimidation by mobile phone or internet was usually only a small part of the problem.

BBC: NEWS | UK | Education | Warning over 'bullying by mobile'