Is ur friend's id is banned?

Are u confused about ur friends ID?
Is your friends ID is banned or anything else?U can know it in just a moment.

Go to invite menu and invite ur friend's number,if it say invalid mobile number then confirm 20% that id is bannedd.

Next try to register that number. Then if it say already registered then it is 80% sure that, number is banned.

So, 20% +80% = 100% that ur friends ID is banned.

So let's try.