Hello Harry,
Thank you for reaching AVG support channel. We will provide support only related to AVG products. If you need help regarding whatsapp, please contact whatsapp support. Thank you.
Yes, you can use multi-accounts. You can use 2 or 3 or even 4 accounts. Even you can use the Official App and on the same device. But you need a different number for both applications. Because if you sign your official WhatsApp account on the GBWhatsApp then your official WhatsApp account expires automatically. So that you need a secondary number to make an account if you are using official WhatsApp on your device.
Hello Harry,
Thank you for reaching AVG support channel. We will provide support only related to AVG products. If you need help regarding whatsapp, please contact whatsapp support. Thank you.