India Rehab Centre — disrespectful ngo

Address:	New Delhi, Delhi
Website:	indiarehabcentre.org

Someone called and introduced himself as a volunteer for the ngo (India rehab centre) and asked me to donate rs.1002 for an injection to the child's treatment. He also sent me the link of their website to crosscheck of reality. I told him i donate once satisfied. And they started to call me frequently and told me to make payment immediately. (Do you think that we had surplus money we simply sitting in front of the computer waiting for such calls).
They are making people to get irritated instead to be donated. The conduct/communication of their very bad as of being an ngo. Don't spoil the people trust.