WhatsApp+ works fine on Android phones but not on BlackBerry 10 phone as users find it difficult to bypass the verification part.. to bypass this, follow the steps below.

Culled from http://naijaclue.com/articles/whatsapp-not-working-on-blackberry-10-phones-here-is-a-fix.html

Steps to Successfully Install Whatsapp+ on BlackBerry 10 Devices
To install WhatsApp+ successfully on your BB10 device, you will need to install Google Play Store on your device first.

If you’ve successfully installed the Google Play Store on your phone, open the Play Store and download the normal conversational WhatsApp

Now pass through the verification process and ensure it displays all your contacts (but do not chat yet)

Close the WhatsApp and uninstall it

Then Install the WhatsApp+ and proceed with the normal verification, and it will surely send you the verification code.