Hello, @Fayiette

When someone signs up for DigitalOcean using your referral link and adds a valid payment method, they immediately receive a $100, 60-day account credit. In return, once the person you refer spends $25 as a DigitalOcean customer, we give you $25 in credit. There’s no limit to the amount of referral credit you can earn.

You can invite up to 30 people per day and there is no limit to the overall number of invitations you send.

You can find more information here:

https://docs.digitalocean.com/products/accounts/referrals/

Hope that this helps!
Regards,
Alex