When you cancel only the sub-line of "Omatome Seikyu Service (combined billing method)," the sub-line will be separated from "Omatome Seikyu Service."

But "Omatome Seikyu Service" itself remains available.

However, when there is only one main line under "Omatome Seikyu Service" after cancelling sub-lines, "Omatome Seikyu Service" may automatically be cancelled.