Hidden Pending Transactions

I was hit with multiple overdraft fees on my checking account, totaling some $240. At $35 dollars per transaction.

My account balance showed a positive $17 dollars after I had transferred cash out. My online account showed NO pending transactions.

However, there where pending transactions that only the Bank could see on there system. And so I was not aware that I was about to get hit with multiple debit related purchases, that took upwards of 5 days to get through the system.