Can't see my time left for wow

I paid for the 1 month subscription for wow on July 1, nowhere near the expiration date did it show me how much time I had left, and today August 1 it doesn’t show me the hours I have. I can still log into the game so I assume I must not have much time left, but I would like to know how many hours I have left or if it really expires today or tomorrow. And no, the remaining time is not displayed below the play button.

Also, in my account settings on the page, it says that my subscription is Inactive and that I have a pending payment (for automatic renewal, although to pay wow I use a prepaid card and have not yet charged the money).