Beste antwoord door Caspar
Welcome to the forum :)
I'm sorry you can't activate your simcard because you don't know the number. Do you mean the mobile number? You have received a e-mail with this information. Do you got the e-mail? If you mean the simcard number, this you can find on the simcard.
I hope to hear from you!
@PaulH bedankt voor de vertaling 😃