Legal
Terms of Service
Last updated 15 October 2026
Agreement
These terms are between you and Arumik Technologies (“we”, “us”) and cover the Messo service on messo.co.ke, app.messo.co.ke, and pay.messo.co.ke. By creating an account, buying credits, or sending a message, you agree to these terms and to our Privacy Policy.
If you use Messo for a business, school, church, or other organisation, you confirm that you have authority to bind it, and “you” means that organisation. If we sign a separate written agreement with you, that agreement wins where it conflicts with these terms.
The service
Messo lets you send bulk SMS, store contacts, run campaigns, buy SMS credits, register a Sender ID, and, if you connect a Till or Paybill, send payment receipts, update recorded balances, and run loyalty points. Features can change as we improve the product. We do not promise that every feature will stay available in its current form.
Messo is a messaging and records tool. We are not a bank, a mobile network, or a payment service provider. M-Pesa payments are processed by Safaricom. SMS is delivered by the mobile networks and the messaging providers we use.
Accounts
Give us a real business name, a phone number you control, and an email address you read. You are responsible for keeping the sign-in details safe and for everything done through the account. Tell us at [email protected] if you think someone else has access.
We may refuse a registration, or ask for more information, if the details look incomplete, misleading, or unsafe to onboard.
Acceptable use
You will not use Messo to:
- Send unlawful, fraudulent, deceptive, or phishing messages, or pretend to be someone you are not.
- Send marketing or other messages to people you do not have a lawful basis to contact.
- Ignore a request to stop messaging a number.
- Send content that is hateful, harassing, or sexually exploitative, including anything involving a child.
- Interfere with the service, probe it for weaknesses, or resell access to it unless we agree in writing.
- Use a Sender ID, Paybill, or Till you are not authorised to use.
You are responsible for the content you send and for complying with the Data Protection Act, 2019, the Kenya Information and Communications Act, and the rules of the mobile networks that carry the traffic. We may suspend sending, or the whole account, if we reasonably believe these terms or those rules are being broken.
Your content and contacts
You keep ownership of the contacts, message text, and records you put into Messo. You give us permission to host, transmit, and display that material only so we can provide the service, keep it secure, and meet the law.
You confirm that you have the right to upload each contact and to send them the messages you queue. If a person asks us about a message you sent, we may share your business name and contact details with them so they can reach you.
SMS credits and fees
Sending uses prepaid SMS credits. You buy credits with M-Pesa. The rate is the one published on messo.co.ke at the time of that top-up. A larger top-up can unlock a lower rate, as the pricing page describes. We may change published rates later. A change applies to future top-ups, not to credits you have already bought.
Credits do not expire and are not cash. They cannot be transferred, sold, or redeemed for money, except where these terms say we will refund them or where Kenyan law requires a refund.
A standard SMS uses one credit per recipient. A longer message, or a message that uses characters outside the standard SMS alphabet (including many emoji), can use more than one credit per recipient. The dashboard shows the credit count before you send.
If a Sender ID cannot be delivered on a network, we do not queue that traffic and we do not charge credits for it. Delivery after a message has been accepted by a network is controlled by that network. Handset, roaming, and inbox conditions can still stop a message arriving.
If a M-Pesa top-up succeeds and the credits do not appear, email [email protected] with the M-Pesa code. We will add the credits or refund that payment. Enterprise or API pricing, where offered, is agreed separately and is not the published self-serve rate.
Sender IDs
A branded Sender ID has to be approved by the mobile networks. You must send the documents they require, including proof of registration and an authorisation letter, and the Sender ID must match the registered name. We submit complete applications and follow up, but we do not control the networks and we cannot guarantee approval or a particular date.
M-Pesa, receipts, and balances
Connecting a Till or Paybill, or sharing a payment link, lets Messo receive payment notices and update your workspace. Receipts, balance updates, and loyalty points depend on those notices arriving from Safaricom and on the rules you set in the account. Check important balances in your own records. We are not a party to the underlying sale, fee, rent, tithe, or other payment between you and your customer.
AI-assisted writing
Some campaign tools can suggest wording. Suggestions can be wrong, incomplete, or unsuitable. Read every message before you send it. You are responsible for what goes out under your Sender ID.
Suspension and closing an account
You may stop using Messo at any time and ask us to close the account by emailing [email protected]. Unused credits stay non-refundable when you close the account yourself.
We may suspend or close an account if you break these terms, if a network or authority asks us to stop the traffic, if the account is being used to harm people, or if we need to protect the service. Where we can do it safely, we will tell you the reason and give you a chance to fix the issue.
If we discontinue Messo entirely, we will give reasonable notice where we can, and we will refund the unused credit balance from top-ups you paid for, less any amount the law requires us to withhold.
Intellectual property
Messo, the Messo name, and the software, design, and content we create belong to Arumik Technologies or our licensors. These terms do not give you any right in that property except the right to use the service while the account is in good standing. You may not copy the product, the site, or our branding for your own service.
Disclaimers
Messo is provided as available. Networks, M-Pesa, and the public internet fail from time to time. We do not warrant uninterrupted service, that every message will arrive, or that receipts and balances will match a payment the moment it is made. Guidance on this website, including Sender ID checklists, is practical information, not legal advice for your campaigns.
Liability
Nothing in these terms limits liability for fraud, or for any other liability that Kenyan law does not allow us to limit.
We are not liable for lost profits, lost customers, or other indirect or consequential loss, or for a message that a network fails to deliver after accepting it. Our total liability arising out of Messo in any 12-month period is limited to the amount you paid us for SMS credits in that same period.
Your responsibility for claims
If a claim, fine, or loss is brought against us because of your messages, your contacts, your Sender ID, or your breach of these terms, you will cover the reasonable cost of that claim, including damages a court awards and reasonable legal fees. This does not apply to the extent the claim was caused by our own breach of these terms.
Changes to these terms
We may update these terms. The new version will be posted on this page with a new date. If you keep using Messo after that date, the new terms apply. If you do not agree, stop using the service and ask us to close the account at [email protected].
Law and disputes
These terms are governed by the laws of Kenya. Please write to [email protected] first so we can try to resolve a complaint or dispute directly. If we cannot, the courts of Kenya have exclusive jurisdiction.
Contact
Arumik Technologies
Customer care: [email protected]
General: [email protected]
Sales: [email protected]
Phone: +254-706-318-783
WhatsApp: +254-783-181-403