The DEC is persisting with the 0870 number:
http://www.dec.org.uk/Help families who are suffering in Niger and the neighbouring countries of Mauritania, Mali and Burkina Faso
RING OUR AUTOMATED DONATION LINE: 0870 60 60 900
So, all the additional revenue to be retained by cellular suppliers etc as with the Tsunami appeal?
Also:
If you have a donation enquiry please telephone our Helpdesk on 0207 436 6000 (sic)