T-Mobile One, 3 paid lines, 2 free lines. Suppose among these lines, there is
- Line A, number 1111, free line
- Line B, number 2222, paid line
Can I swap the two numbers such that Line A the free line is with 2222 and line B with 1111?
I somehow remember I did this through appchat very long time ago but would like to confirm.

