1) By paying Zakat Al-Fitra on this page you are authorizing Al-Ayn to pay the Zakat on your behalf. You are also authorizing Al-Ayn to carry out the jurisprudential requirements to transfer the ownership of the amount you have paid electronically from yourself to Al-Ayn, to compensate for the amount paid on your behalf.
2) The amount per person is $10 CAD (with the intention of it being instead of 3kg of rice and any excess of that being Sadaqa).
Al-Ayn Social Care Foundation Canada is a registered charity in Canada. You will be provided income tax receipts.