Hello! @PoneNya Thanks for posting your concerns.
Sorry to hear you’ve had issues filling your account. On an iphone, you can go to settings>phone and the active number will show at the top of the display. If you need assistance retrieving the PUK, please reach out to our international line at +1.916.843.4685 and a GoPhone agent will be happy to assist with this.
Hope this helps!
Charise