Do I get customer information for the donation?

Yes!

All transactions are handled like regular Shopify orders. When a customer makes a donation, an order will appear in your Shopify Admin, showing the customer's name, email address and billing address. 

If you want customers to add a shipping address, you can activate shipping requirements for the donation from the DonateMate settings.

DonateMate does not store any customer data. All your customer data remains safely on the Shopify server.