AIES Billing: Workspace Admin Guide

Last updated: May 13, 2026

This article covers everything you need to manage AI mailbox slots and domains within your workspace, including billing, access permissions, and what happens when payments fail.

What is AIES Billing?

AI Email Service in your workspace relies on two paid components:

  • AI Mailbox Slots — each slot enables one AI-powered mailbox. Slots are billed as a single subscription.

  • Domains — custom sending domains purchased through the platform.

Your workspace uses a billing method set by your Whitelabel Admin (either USD or credits). This determines how all charges for slots and domains are processed in your workspace. 

Managing Member Access

By default, Workspace Members cannot buy or renew domains or slots. As a Workspace Admin, you decide who gets those rights.

Granting and Revoking Purchase Rights

  • You can grant or remove a member's ability to buy and renew domains and slots from Workspace Settings > Members.

  • You can see which members currently have purchase rights.

Note: Even members with purchase rights cannot delete domains or reduce the number of slots.

Only Workspace Admins (and above) can do that.

AI Mailbox Slots

How Slot Billing Works

Your workspace has a Mailbox Slot Billing Date, set to the date your workspace first purchased a slot. All slot renewals are tied to this date.

Slot billing follows the duration of your main subscription:

  • Monthly subscription: slots renew monthly

  • Annual subscription: slots renew annually

If you buy additional slots mid-cycle, you are only charged a prorated amount for the remaining days until your billing date. The full amount for all slots is then charged on each billing date.

Buying Slots

Slots cost $5 each (when paying in USD). Credit pricing is set by your WL Admin. You are charged only after a successful payment — slots appear in the interface once payment is confirmed.

When buying multiple slots at once, the total is the sum of all slot prices.

Note: Slot charges are non-refundable.

Reducing Slots

You can remove slots, but only down to the number of active mailboxes. If all your slots are in use, you need to remove mailboxes first.

What Happens If a Slot Renewal Fails

If the automatic slot renewal charge fails:

  • All workspace admins receive an email notification with a link to the payment page.

  • Email sending from all AIES mailboxes is paused.

  • Affected prospects move to Pending status with the reason: AI Mailbox Slots are unpaid.

Retrying a Failed Renewal

You can manually trigger a retry from the Billing page. Once payment goes through, all restrictions are lifted and slots are renewed automatically.

Domains

Buying a Domain

Domains are purchased for 1 year at a time. The charge only goes through after the domain is successfully registered. Once you see the domain in the interface with a Processing status, it is being set up.

Auto-Renewal

You can enable auto-renewal per domain:

  • Enabled more than 45 days before expiry: charge runs automatically 45 days before the expiration date. Failed charges are retried on a schedule. You can also retry manually from domain settings.

  • Enabled 45 days or fewer before expiry: you are charged immediately. No automatic retries if it fails — you must retry manually.

💡 Find out more about domain auto-renewal in this article.

If a Payment Fails

You will see an on-screen error with a reason. You can:

  • Remove specific domains from the order (if ordering more than one)

  • Retry the payment

  • Switch to a different payment method (if paying in USD)

  • Close the order

Viewing Billing Information

In Workspace Settings > Billing, you and all workspace members can see:

  • How many slots you are currently paying for

  • How much you are being charged (in USD or credits)

  • Your next billing date (Mailbox Slot Billing Date)

Payment Methods (USD Only)

For USD payments, the entire order is charged to one payment method. You cannot split an order across multiple cards.

You can manage saved payment methods in the Stripe Customer Portal.

For manual purchases: you choose the payment method. If it fails, switch to another saved method and retry.

For automatic renewals: the charge goes to your default method first, then tries others in the order they were added.

Payment Failure Error Reference

If a payment fails, the following error messages may appear:

Error

What it means

Insufficient funds on the card to complete the payment

Your card does not have enough balance

The card has been reported lost or stolen

This card has been flagged by your bank

The payment requires additional authentication

Your bank requires 3D Secure or similar verification

The bank refused the transaction without a specific reason

Generic bank decline

A technical error occurred during processing

Temporary processing issue — try again

The bank account has been closed

The account linked to this payment method is closed 

The bank account does not support payments in the requested currency

Currency not supported by this card

The payment provider declined the payment

Generic provider decline

Unable to charge your account

Account-level restriction 

Order exceeds your bank account limit

Transaction exceeds your bank limit

Your card has expired

Update your card details

Payment cannot be processed due to policy or legal restrictions

Compliance block

The specified amount is outside allowed limits

Amount too large or too small for this method

This card has been declined too many times. You can try to charge this card again after 24 hours

Rate limit on card — wait 24 hours 

The card has been declined

General card decline

The provided payment method has failed authentication

Authentication failed — use a different method

The payment processor is temporarily unavailable

Try again later or use a different method