Below is a whisper showing what our database reflects as payment history. I don't see anything showing you should not have been ad free/variable and think that it must be some mistake in the cycle you'd set up for the recurring billing maybe being set for monthly instead of annually as you wanted.
Can you please reply whispering the transaction # so BbBoy can track this for you and if it is as I suspect, set up for monthly billing he can cancel it for you so you will not be billed for next month. As you can see below so far no payment is showing as being taken out on August 3rd and the board has plenty of credit.
It also might be a case of the board being affected by a seemingly random billing glitch where a board with credit reverts to free at the change of a monthly cycle, despite it having credit. If you can reply with the transaction # here BbBoy can look into this for you. The first payment you made was in September of last year so if you want to cancel the recurring payment reply to let us know and BbBoy can do it for you, because it most likely would charge you in September coming up.
It shouldn't have charged you this month so any information you can provide to help us track it will help to resolve this quickly for you. I apologize for the problem as it might have been a combination of the above, I can't tell, but BbBoy will look into this for you Monday when he is on.