Hi @Kareena Thank you for your detailed message and for explaining the situation so clearly. I completely understand how frustrating this must be, especially as you rely on Viber to receive important banking security codes.
As your main SIM is now your iD Mobile line. Since your Viber account is linked to your Three PAYG SIM, the verification process is attempting to reach that number. Unfortunately, our network cannot influence calls or verification codes sent to a SIM on a different provider, so iD Mobile cannot directly deliver the verification call intended for your Three SIM.
However, there are a few ways we can help from our side:
Using iD Mobile as the active line: If you wish to use your iD Mobile number for Viber moving forward, you could update Viber to use your iD Mobile SIM. This may require contacting Viber Support to update your account and receive verification on your new number.
Ensuring dual SIM setup compatibility: If you still need to use your Three PAYG SIM for Viber, make sure your iD Mobile SIM does not interfere with calls/SMS on your Three SIM. While we cannot guarantee the verification call from Viber, ensuring your phone is correctly configured can prevent network conflicts.
Contact Viber Support: Ultimately, verification calls and business messages from non-UK banks are managed by Viber. They may offer alternative methods for verification that are compatible with your dual SIM setup.
~Marquerita
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