Free
From a yoin number
1988
yoin customer service phone number, opening hours and contact details
By Maaike Zahn | Last updated on 22 May 2025
yoin customers reach the customer service team on 1988. Want to become a yoin customer? Subscribe via CallMePower — 24/7 online. On this page you'll find all the phone numbers, opening hours and contact options for yoin.
1988
3 phone numbers
How do you contact yoin?
Four channels, one goal: get your question answered as fast as possible. Pick whatever best matches your situation.
Call customer service
3 phone numbers with opening hours — general customer service, helpdesk and international.
See the numbersOnline customer area
MyYoin — check invoices, manage your subscription and chat with customer service.
Open customer areaEmail or social media
Email directly to [email protected] or message via Facebook, X or Instagram.
See channelsFile a complaint
Try yoin first, then the Telecommunications Ombudsman if you can't reach a resolution.
See procedureyoin phone numbers
yoin has different phone numbers depending on your situation. Below you'll find each number with the cost and purpose.
Standard rate
From another Belgian number
078 48 61 11
Standard rate
From abroad
+32 78 48 61 11
Recommended when in doubt
CallMePower — free advice
02 588 25 47Compare yoin with other Belgian operators — free and independent.
yoin customer service opening hours
Not every yoin service team is reachable at the same times. Below is a visual overview per service.
Customer service
Weekdays
9:00 – 18:00
Saturday
—
Sunday & bank holidays
—
CallMePower
Weekdays
8:00 – 19:00
Saturday
9:00 – 18:00
Sunday & bank holidays
Closed
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Phone advisory service operated by CallMePower (part of the Selectra group), helping you compare every Belgian telecom provider free of charge and find the best plan for your situation. CallMePower has no partnership with this entity and cannot sign up customers with it.
MyYoin — the online customer area
In MyYoin you can handle many things yourself — often faster than by phone. Check invoices, change your subscription and get notifications about outages or new options.
Reach yoin via email or social media
Prefer not to call? You can also reach yoin digitally — via email or via the official social media channels. Both options are listed below, with the typical response time and the right channel for your question.
yoin email & contact form
For general questions, email [email protected].
yoin social media
Follow or message yoin via the official channels.
Procedures with yoin
Moving, becoming a customer or cancelling — click on each card to see the full procedure.
Become a yoin customer
Subscribe to a new yoin plan.
- Online via CallMePower — subscribe to yoin through our partner link, available 24/7.
Notify yoin of your move
Change your address with yoin — mobile or pack.
Your address change makes sure invoices, post and any visiting engineers reach you at the right address. The approach depends on the type of subscription.
Mobile-only subscription
Change your billing address directly in MyYoin. Your number and plan remain unchanged.
Internet or pack subscription
Notify your move 2 to 4 weeks in advance — an engineer may need to visit the new address to activate the connection.
Details yoin will need
- Customer or contract number
- Current and new address
- Planned moving date
- Phone number where the engineer can reach you
Note: yoin delivers internet over the Proximus network — check in advance whether your new address is already connected, otherwise a technician will need to come over.
Cancel or switch from yoin
Easy Switch, number portability or via CallMePower.
- Via CallMePower — cancel and subscribe to a new plan in one call.
- Easy Switch when switching internet or TV providers — no interruption to your connection.
- Number portability when switching mobile plans — keep your phone number.
- Via MyYoin — manage your cancellation yourself.
Filing a complaint with yoin
Stuck with an unresolved problem? Follow these three steps — the Telecommunications Ombudsman is your last resort.
1
Contact customer service
Describe the problem to yoin customer service, mention earlier contact attempts and keep the reference number of your case.
2
File a formal complaint
No resolution? Ask for written confirmation in every interaction (by email or in MyYoin) so you have a paper trail.
3
Ombudsman
Escalate to the Telecommunications Ombudsman — an independent body that mediates between you and the operator.
Frequently asked questions about yoin customer service
Can't find your answer below? Call our Belgian advisor on 02 588 25 47 — free and pressure-free.
From a yoin mobile, call 1988 (free). From another Belgian number, call 078 48 61 11. For advice or a new subscription, call CallMePower on 02 588 25 47.
From a yoin mobile, call 1988 free of charge. 078 48 61 11 is charged at the zonal rate.
Call +32 78 48 61 11 at the roaming rate of your foreign operator.
Yes, send your question to [email protected]. You can also follow up on tickets via MyYoin.
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