Dear Helena,
Thank you very much for your reply. Yes, it is correct that the subscription has been activated on April 10. However, if I look in the Sunrise app under the tab ‘ Extra charges on upcoming bills’ and look at the details it clearly says 30,- CHF for a 24 minute call to the Netherlands. This call was made hours after the Up Mobile XL subscription was activated.
Looking forward to hear from you. Thank you again.
Greetings
Mischa