Dear
I subscribed Blue Mobile L plan in early December 2022.
I was told by the Swisscom person that I try to use Blue Mobile L because it can be changed to other plans, such as Blue Mobile M, within 3 months after the subscription.
Assuming my usage of mobile phone, Blue Mobile M is enough, rather than L.
Could you let me know how to change my plan ?
Best regards.
Haruo Kusakabe