Charities will just have to deal with the fact that face-to-face fundraising is controversial, according to Charities Aid Foundation chief executive Stephen Ainger.
Speaking after a CAF-organised seminar on the self-regulation of fundraising, Ainger said: "There is pressure on charities because of the perception that face-to-face fundraising generates."
He added: "Debating whether the perception is real or not is kind of irrelevant, and saying it's not true doesn't work."
He told delegates at the seminar that face to face "appears to offend many people and that some donors undoubtedly feel they are unduly pressured to sign up".
Ainger said an independent complaints body should be "lean and mean with clear, concise and unambiguous codes".