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Join UNDOBecome an UNDO member

Mobile plans for your team, with up to 15% off.

The same four plans on Orange’s 5G network, for your whole team on one invoice. From 5 plans you get a discount for as long as you stay a customer. And for every new subscription, we plant a tree.

Why UNDO

Four reasons businesses switch

  1. A lasting discount from 5 plans

    5% from 5 plans, 10% from 10 and 15% from 25. For as long as you stay a customer and keep the minimum number of plans active. We apply the discount to your monthly invoice automatically, based on the number of active plans.

  2. One invoice for your team

    All your team’s plans on one clear invoice. Less admin for your accounts.

  3. Insight into your CO₂ emissions

    In the app, every employee sees the emissions from their phone use. UNDO also publishes its own footprint, so you work with real figures.

  4. No minimum contract term

    Every plan can be cancelled any month. What you don’t use carries over to the next month.

Plans

Price per plan, per month

Prices incl. VAT, before discount. From 5 plans you get 5% off, from 10 plans 10% and from 25 plans 15%.

With every plan

  • What you have left, you keep
  • Your full bundle, in the EU too
  • You keep your number
  • Cancel any month

  • Zero Waste

    €4 a month

    Everything you need, nothing you waste.

    Choose this plan (Zero Waste)

    Included:

    • 4 GB data
    • 400 minutes of calls
    • 400 SMS

    1 tree planted at activation

  • Most popular

    Rise

    €8 a month

    The best balance between price and usage.

    Choose this plan (Rise)

    Included:

    • 8 GB data
    • 800 minutes of calls
    • 800 SMS

    1 tree planted at activation

  • Boost

    €18 a month

    For those who want more, without compromise.

    Choose this plan (Boost)

    Included:

    • 30 GB data
    • Unlimited calls
    • 100 SMS

    1 tree planted at activation

  • Wild

    €24 a month

    Total freedom, and a new tree every month.

    Choose this plan (Wild)

    Included:

    • 40 GB data
    • Unlimited calls
    • Unlimited SMS

    1 tree planted per month

Become a business customer

How to switch

Questions? Email sales@undo.be

  1. Order your plans

    Online or in the app. You log in with itsme and choose a plan per employee, with eSIM or SIM card.

  2. Enter your company details

    Add your company details when you order. Your account is then a business account straight away. You don’t need to send anything separately.

  3. More than 20 numbers?

    Email us. We’ll set up your business account and help you place the order.

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Frequently asked questions

Questions from businesses

All questions
How do I become a customer with my company?

Order your subscriptions online or in the app, and log in with itsme. Add your company details when you order: your account is then a business account straight away. Want to transfer more than 20 numbers? Email sales@undo.be. We'll set up your account and help you place the order.

Bringing your employees' numbers along? Have each employee fill in the MNP form and collect them. You use those details to place the order. Don’t cancel the current subscriptions before the transfer. They end automatically once the numbers are active with UNDO.

From 5 active plans you get a discount. We apply it to your monthly invoice automatically. More info on the Business page.

How do I convert my personal account into a business account?

We do that for you. You don't need to take out a new subscription and you keep your number. Send an email to support@undo.be with:

  • your UNDO number

  • the company name and VAT number

  • the registered office address

  • the name of the legal representative

  • your company's email address, if it's different

From the next month, your invoices are in your company's name. You move your direct debit to your business account yourself, via MORE, MY INVOICES AND PAYMENTS and PAYMENT METHODS in the app or in My UNDO.

How many SIM cards can I order?

Up to 7 as a private customer and up to 100 as a company. Need more for your company? Get in touch via the Business page.

Can I keep my number?

Yes, and it's free. When you order, you say you want to keep your current number and give the details of your current operator. We handle the transfer.

  • Enter your customer number and the SIM card number of your old operator exactly. A mistake there is the most common reason a transfer is refused.

  • Your old SIM card keeps working until the transfer is done. You get a text as soon as your number is active with UNDO.

  • Your old subscription ends automatically. You don't need to cancel it yourself.

You can follow the status in the app or in My UNDO, under YOUR TARIFF. As long as the box around your number is grey, the transfer is still running. Once it turns green, your number is active.

What's the difference between the main account holder and other users?

The main account holder has access to all numbers and settings of the account: paying invoices, changing subscriptions, adding extras.

Other users log in with their own number. They only see their own subscription and assign their own CO₂ credits.

How do I order an extra SIM card?

In the app, go to your number under YOUR TARIFF, swipe left and click ORDER. In My UNDO, click ORDER to the right of your number.

You can only order an extra SIM card if all your invoices are paid.

Am I tied to a contract?

No. There's no minimum contract period. You can cancel your subscription every month, and you can always take your number to another operator.

How many plans are you switching?

Let us know how many plans you want to switch. We’ll work out your discount and help you switch.