Didn't give trial $5 after registering and confirming number

Why did this happen, is it possible to get $5 and will the same happen with a new account?

As of the most current information we have, new accounts should get $5 of API credits.

No one here can say for certain why you weren’t awarded any credits, so no one can say whether another new account will have a different result.

It may be that the system believes—correctly or incorrectly—you’ve already been awarded some credits so it won’t award them a second time.