Help & Support

General questions

How to activate the call forward on my IPhone?

On your Home screen, touch Settings


Press Phone


Press Call Forward


Enable option and enter your phone number


Enter the phone number to which you want to forward your calls, and then press <Call Forwarding

Your calls will now be forwarded to that number.



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You must complete the following steps to claim your refund:

  1. Contact LALUX insurance at +35247616640 or by e-mail: and send your damaged phone for repair in a JOIN shop.
  2. You will receive the documents to be filled in from LALUX. You will have to fill them in, add a copy of the invoice of the purchase of the phone and send it back to LALUX.
  3. Once the repair quote is received, you will have to sign it at the shop of deposit or by mail.
  4. As soon as the phone is returning from repair, the shop will contact you. The repair invoice must be paid at the shop.
  5. After payment, you can ask for your refund at the insurer LALUX by sending proof of payment.
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Premium SMS: ho much you coud pay

Some call them premium sms, pay, premiums or special numbers. Join does not set the prices of paid SMS and special numbers but the service provider that manages the short number.

Below is a list of maximum tariffs affected by SMS.


Fee schedules for paid sms

  • All sms to 8xxx numbers will always be free.
  • Some services will charge you for sending and receiving sms.
Number  Maximum Rate Type of Service
2xxx Max. € 1,00 /SMS General services
3xxx Max. € 4,00 /SMS General services
4xxx Max. € 31,00 /SMS Payment Services
5xxx Max. € 0,50 / SMS Services for games, logos, ringtones, etc.
6xxx Max. € 2,00 /SMS Services for games, logos, ringtones, etc.
7xxx Max. € 4,00 /SMS Erotic services (18+)
8xxx Free Free services
9xxx € 2,00 par SMS envoyé et reçu

Subscription services for games, logos, ringtones, etc.

You can download the complete list of short numbers on the links below.

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What can I do if I receive unwanted commercial calls on my phone number?

Please note that you have the option to register for free at the time of the subscription of your contract and at any time on the list "do not call me any more" at: http: // /

Companies that carry out direct marketing actions will then have the obligation to delete your name and telephone number from their prospecting list and you will not be disturbed once your registration has been successfully completed.

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How to set up my smartphone or tablet?

Set up your tablet or your smartphone is too complicated? Don't worry, follow this guide and configure your device with ease

Click here and configure your device

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How to configure my smartphone or tablet?

You would like to configure your smartphone or tablet but it’s too difficult for you? Don’t worry, follow this guide and configure easily your devices.

 Click here to configure your device




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Is it possible to obtain a double SIM card for the same phone number?

It is currently not possible to obtain a dual SIM card for the same phone number, either on one or different devices.

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How can I contact JOIN?

Multiples ways exist to contact the JOIN's customer Service:

1) By email :

via our online form 



2) By phone:

Promo Line for our offers: 8002 9008 from Luxembourg

Our Call Center for any further information: 9009 (from mobile JOIN) or :

+352 2889 9009 / +352 671 009 009 


3) By post: Rue Emile Bian, 1 L-1235 Luxembourg; Luxembourg

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