I'm writing publicly because you've completely ignored the email I sent you about this matter. Nice one.
I've been an Oxfam supporter for many years. You're one of the more respectable aid NGOs around. Non-religious and effective. Unfortunately your fundraising methods are getting more and more intrusive. Your use of charity muggers annoyed me, particularly when I worked on Little Oxford Street in London and got hassled by them every single day.
So goodbye Oxfam. I'll have to find another aid charity for my donations.