A mobile plan from €4. What you don’t use, you keep.
On Orange’s 5G network, cancel any month. And for every new subscription, we plant a tree in our own forest in Congo.
Why UNDO
How a mobile plan should work
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Switch in three steps
Choose your plan and keep your number. We cancel your old subscription. When you port your number, the waiting time depends on your current operator.
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eSIM or physical SIM card
With an eSIM you scan a QR code and you’re usually active within the hour. Prefer a physical SIM card? We’ll send it to you.
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What you don’t use, you keep
Data, minutes and texts you have left carry over for a month. And you can use your full bundle in the EU too.
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Fast 5G on Orange’s network
You call and browse on Orange’s network, with 4G and 5G.
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Your usage and your CO₂ in the app
You see your data, minutes and texts, and the emissions that come with them. With every plan we support certified climate projects with CO₂ credits.
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Someone actually picks up
Chat, call, email or send us a WhatsApp message. On weekdays from 8.30 am to 5 pm, our team is there to help.
Plans
Which UNDO suits you?
Four plans, all cancellable any month. You can always switch.
With every plan
- What you have left, you keep
- Your full bundle, in the EU too
- You keep your number
- Cancel any month
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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
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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
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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
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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
Our forest
For every new subscription, we plant a tree in our own forest in Congo.
At Ibi Village, close to Kinshasa, we are turning dry savannah back into forest. The acacias grow there between maize and cassava, planted with our local partner GI-AGRO. The forest is fully owned by UNDO.
Together with our customers, we have already planted 21,831 trees.
What our customers say
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5 out of 5 stars
Happy purchase
From ordering eSIM to get connected took less than 3 hours. I had few questions while ordering and they helped me immediately by the chat. I'm very satisfied with their price and service, and happy to plant a tree!
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5 out of 5 stars
Extremely easy order
Extremely easy order prices and fast delivery. Activation went smoothly too. This was my second SIM. Have been using my first one for over a year now without issues. Contacting customer services is usually fast and efficient.
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5 out of 5 stars
Quick and clear answers
Quick and clear answers.
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5 out of 5 stars
Very friendly lady on the telephone
very friendly lady on the telephone.everything went good and nice
Questions? Here are the answers.
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.
Does UNDO work with an eSIM or a classic SIM card?
Both. When you order, you choose an eSIM or a classic SIM card. If you choose an eSIM, you enter the brand and model of your smartphone and we check right away whether your device supports eSIM.
An eSIM costs nothing extra, you get it by email and it's usually active within the hour. A classic SIM card is a multi-size SIM card: you push out the right size yourself (standard, micro or nano). Shipping it costs €5.
Which network does UNDO use?
UNDO uses the Orange network, with 4G and 5G. Both the eSIM and the classic SIM card work on 5G, if your smartphone supports 5G and 5G is switched on in your settings.
How do I cancel my subscription?
Cancelling takes three steps:
Download the cancellation form and fill it in.
Send it to support@undo.be.
We stop your number and confirm by email.
At the start of the next month you get one last invoice, for your usage and your subscription up to the day your number stops.
Taking your number to another operator? Then your UNDO subscription ends automatically once the transfer is done. You don't need to cancel anything.
Can I change my subscription?
Yes. In the app or in My UNDO, click MANAGE under YOUR TARIFF and choose CHANGE SUBSCRIPTION. Pick the new subscription and confirm.
Your new subscription starts on the first day of the next month. Until then you stay on your current subscription, and as long as the new month hasn't started, you can still cancel or change the switch.
The UNDO app
Your usage, your invoice and your CO₂ in one app.
Track your data and minutes, view your invoices and see how much CO₂ your phone use causes. With your CO₂ credits, you choose which climate project you support.
