'Call me now' for the 3 digit code doesn't happen

[obiwan]

Hi,

I'm trying to register, I went throught all the steps until:
...
You will be called at:...
edit phone number
Click on the Call me now button to receive a call at the number displayed. You will then hear a recording of the 3 digit confirmation code which you must enter in the confirmation field to the right.
...

I clicked the 'Call Me Now' button but I didn't receive any calls.
It's been 30 minutes and I tried with 3 different phone numbers.
Can someone help, please?

Thanks!