Woodforest National Bank Cannot stop ACH payment because it keeps coming back. P.O. Box 7889 Nationwide

I have been using Woodforest as my bank now for some time with a checking account, mainly because of their convenient hours and location (right up the street at WalMart), but this past week I made a mistake, and made a one-time online payment to my power company for more than I had in the account....

So, I got in contact with both the power company (worthless), and with the bank (also worthless apparently), and was told that the charge would be cancelled as soon as it was no longer Pending on my account. Alright, so far so good, but this is not what occurred, instead as soon as it was not Pending anymore the bank Rejected the transaction, and charged me an Overdraft penalty fee of $30. The result of this was that the transaction was never actually cancelled, and instead was rejected. So, I got it worked out with the bank to refund my penalty to the account, again so far so good. However, because the transaction was never actually cancelled, the power company came back 2 days later and tried again, and again overdrew my account severely.

I am now disgusted with this so called "customer service" provided by both organizations, and am looking forward to yet another overdraft penalty. It is too early to contact either of them now, but even if I do, they both obviously have no clue!!