This is possible, but you must first register yourself (but without starting your own plan or activating the SIM card) and then add your son to your account as a "Friends & Family" member. You can also request a porting in this step. You can find the exact instructions here: https://helpcenter.mobile.galaxus.ch/hc....
Rocksresort Laax: win a stay for 4 people
Get involved in the Community and win!
We're giving away a voucher for Rocksresort Laax: 2 nights in a family flat for 4 people.
