I can't register

[Android Central Question]

I accidentally press the "never allow" when i was about to send to 9999. And now i can't send my register to 9999 anymore. Can you help me to fix this. My phone is azus zenfone.

 

[B. Diddy]

Welcome to Android Central! What are you trying to register for, and how are you trying to do it? What's 9999?