I'm beginning to think different banks or platforms or operating systems or whatever present differently and may have different steps, screens, etc. but I'll walk through what I did.
1. Launched Schwab app via my iPhone (IOS)
2. Launched Zelle within the Schwab app
3. Select "Send Money"
4. Select "New Contact"
5. Select "Business" radio button (screen shot below)
6. Enter "Debt Free Fanatics" in "Business Name" field
7. Enter "debtfreefanatics@gmail.com" in "E-mail" field
8. Click "Save"
9. Enter donation amount
10. Click "Review"
11. Click "Send Money"
Note: once this is setup, future donations are easily made as the forum will be saved as a "contact".
Hope that helps.