When someone you refer signs up for a plan, they have 30 days free before their plan is charged. In your affiliate dashboard, the conversion will be shown as "$0" if they are still in their free trial period. Once the customer is out of their free trial period (and is paying for their account) the conversion record will change to the amount paid for the plan and the commission will be updated according to the commission structure.
Due to the 30-day trial on all plans, we want to make sure referrals coming from affiliates are given the full free trial period prior to us verifying and approving/declining commissions. Therefore, our payout date is the 1st of each month, for all referred customers/conversion taking place two months prior.
For example, if I refer someone on June 15, their free trial would be up on July 15. If they upgraded between July 15 and July 31, we would review (and if approved) pay the commission on August 1st for that customer.
Since it is a free plan, we do not offer a commission on these accounts. However, if a customer you refer upgrades to a paid plan, you will be compensated for that plan's commission.