Thanks @Gustavo Boregio, I appreciate your prompt response,
I referred a new user who signed up using my referral link. The one-month free trial that's supposed to be applied through the referral isn't showing up or being applied to their account.
I can confirm the signup is being tracked, I can see my client's email listed under Signups in my PartnerStack dashboard, so the referral was attributed correctly. However, on their end, the free month doesn't appear to be active or applied.
Is there a delay between PartnerStack tracking the signup and the free month being applied in Manychat?