The donations can be transferred to the correct project if the request for the change in the project is made immediately after the donation. However, once the amount is transferred to the NGO, any change in the donation would not be made.
In case you seek a refund for the incorrect donation, we would need permission from the NGO whose project you have accidentally donated to. Please get in touch with the NGO the donation has been made to and explain the situation. If they are happy for us to refund the donation, please ask them to drop us an email to let us know.