Michael Berg, the co-founder of Raising Malawi has sent out this message about Madonna's reaction to donations to the charity so far:

Madonna and I just got back from an emotionally charged trip to Malawi. 
It wasn't the poverty or hardship in Malawi that shocked Madonna - it was your response to it. When Madonna pledged to match $100,000 in your donations to Raising Malawi, she never dreamt that you'd crush that goal in just a few days! 
After the news of your generosity set in, Madonna looked around and said, 'We must do more!' Madonna has upped the stakes and pledged to match an additional $150,000 in donations made in the next week. 
Will you make a donation to Raising Malawi? Madonna will match your donation today atwww.raisingmalawi.org/doubletheimpact