You can check your subscription status from My au (web).
Your subscription status will be displayed in each section, au Smart Pass Premium [auスマートパスプレミアム] and au Smart Pass [auスマートパス].
If you wish to subscribe, tap "Subscribe to au Smart Pass Premium" [auスマートパスプレミアムに入会する], and if you wish to unsubscribe, tap "Procedure for unsubscribe" [退会のお手続き] and the procedure screen will be displayed.
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