Here's what the Square email says:
1. Send your invitation link above to friends
2. When your friend activates a Square account through your link, they can process up to $1,000 in credit card sales for free.
3. For each friend who successfully activates a Square account, you get free processing on your next $1,000.
So go ahead and click the link help me helo you! c:
https://squareup.com/i/B2B10243