Believe it or not, to use GivePanel you don't need a Facebook account.
What you will need is a copy of the Facebook Giving Report (CSV file). The person who downloads this will need access to the nonprofits facebook page.
To really make the most of GivePanel and to reach out and thank your Facebook fundraisers you do need access to your nonprofits page. This will enable you to post on your Facebook Fundraisers page to say thank you and also encourage them to fill out the data capture form so you can capture their contact details and invite them into your welcome journey.