Billing

Lumi uses a transparent, usage-based pricing model designed to scale with your needs. You pay only for what you use, with clear limits and no hidden fees.

Understanding the Pricing Structure

Every plan includes a base message quota, a maximum number of bots, workspace limits, and team member caps. Pricing is per-user, meaning each person on your team counts toward the monthly cost—but your end users and website visitors don't.

Free Plan (7-Day Trial)

Start with 100 messages per month and one bot. This is enough to test the platform, build a simple knowledge base, and see how users interact with your chatbot. The trial lasts 7 days, after which you'll need to upgrade to continue service.

Starter Plan - ฿299 per user/month

Includes 4,000 messages monthly, support for up to 3 bots, one workspace, and a team of up to 3 people. Gitbook integration is included, allowing you to import documentation as a knowledge base.

Pro Plan - ฿599 per user/month

Raises the message quota to 6,000, supports 5 bots and 3 workspaces, and allows teams up to 10 members. Pro unlocks LINE Official Account and Facebook Messenger integrations, critical for reaching customers on their preferred platforms.

Enterprise Plan - ฿1,399 per user/month

Removes all limits—unlimited messages, unlimited bots, unlimited workspaces, and unlimited team members. Includes all integrations: WhatsApp Business and Telegram in addition to LINE and Facebook.

Managing Your Subscription

Upgrading

Click Billing in the dashboard, then Upgrade Plan. Select your desired plan and specify the number of users (team member count). Review the total cost and confirm.

You'll be charged immediately on a prorated basis. If you upgrade on the 15th of the month and your billing date is the 1st, you'll pay for the remaining half-month at the new rate, then the full amount on your next billing date.

Downgrading

Select a lower plan from the Billing page. Downgrades take effect at the end of your current billing period, not immediately. This means you keep your current plan's benefits until renewal, at which point the new plan and pricing apply.

Before downgrading, check that you're within the new plan's limits. If you have 5 bots but are moving to Starter (3 bots max), you'll need to delete 2 bots first. The system will warn you if you exceed limits.

Adjusting Team Size

Team size adjusts automatically as you invite or remove members. When you invite someone, they're added to your bill immediately (prorated). When you remove someone, you receive a prorated credit.

Cancellation

Click Cancel Subscription in the Billing page and confirm. Your service continues until the end of your current billing period, then stops. Your data is retained for 90 days, allowing you to reactivate without losing everything. After 90 days, all data is permanently deleted.

Payment Methods

Lumi accepts Visa, Mastercard, American Express, and JCB. International cards work fine—we accept any card that supports international transactions.

Updating Your Card

Access the Stripe Customer Portal through the Billing page. Click Payment Methods, add a new card, set it as default, and optionally remove your old card. Changes take effect immediately.

Failed Payments

If your payment fails (insufficient funds, expired card, bank decline), you'll receive an email immediately. The system automatically retries after 3 days, then again after 7 days. After three failed attempts, your account is suspended and bots stop responding.

To resolve a failed payment, update your payment method in the Customer Portal. Service resumes automatically once payment succeeds.

Understanding Usage and Quotas

Message Counting

Every message from a user and every response from the bot counts toward your quota. A simple two-turn conversation (user asks, bot answers) uses 2 messages. A five-turn conversation uses 10 messages.

Checking Current Usage

Your dashboard shows current usage statistics. The Billing page displays your quota and how much you've consumed this billing period.

Reaching 100% Quota

When you hit your message limit, the bot stops responding. Users see a "temporarily unavailable" message instead of a response. You have two options: upgrade to a plan with a higher quota, or wait until your quota resets on your next billing date.

Quota Reset

Quotas reset monthly on your billing date, not on calendar month boundaries. If you subscribed on the 5th of the month, your quota resets on the 5th every month.

Invoices and Records

Access past invoices through the Stripe Customer Portal. Each invoice is available as a downloadable PDF and includes your company name (if provided), billing address, tax ID, itemized charges (base plan cost plus per-user charges), and payment method (last 4 digits).

This makes accounting and expense reporting straightforward—you have complete records of every charge.

Common Questions

Can I get a refund?

Refunds are available within 7 days of your first purchase only. Contact [email protected] with your request.

Do you offer annual billing?

Yes, with a 15% discount. Contact [email protected] to set up annual billing.

What currency do you charge in?

All prices are in Thai Baht (฿). International cards are accepted and will convert at your bank's exchange rate.

When exactly am I charged?

On your subscription date each month. If you subscribe on the 12th, you're charged on the 12th of every subsequent month. Changes to team size are prorated and reflected in the next invoice.

Can I pause my subscription?

No, but you can cancel. Your data remains for 90 days, so you can reactivate within that window without losing anything.

Do end users count toward team size?

Absolutely not. Only your team members (people with dashboard access) count. You can have unlimited website visitors and chat users without affecting your bill.

What happens if I exceed my message quota?

Bots stop responding until your next billing cycle or until you upgrade. There are no overage charges—you simply hit a hard limit.