DDA CCS Medical Overdraft my account and laughed about it!

My husband and I were told we would be billed 154.00 monthly for medical supplies we agreed to that, the employee entered it as weekly so I was surprised with a draft on 7/13 we were also billed 7/7 so I called this morning at 9:15 am they seen there was an error entered weekly instead of monthly asked if I wanted to apply this to Augest payment I told her I don't have the funds to do that and I have a very small margins from pay check to pay check

 so she put in for a reversal of payment after the conversation I called my bank explained it I was told unfortunately I would be billed a overdraft fee (they charge 36.00) so I called back there is a 15 minute wait time each time I had chores to do so had my husband talk to them he was told they would mail the overdraft charge after I send documentation of the overdraft so I called back another 15 minutes asked for a supervisor right off she told me the bank would take the charge off after the payment was reversed

I told her I already talked to my my bank and what they told me she said they don't reimburse overdraft fees I explained it was not my fault they debited a second payment and I should not have to pay she kept insisting the bank would take the overdraft off so I said I'll wait until tomorrow to see what happens but if I have a overdraft charge I'm calling back her answer was laughfter I also thought I heard her say it won't do you any good but I was pretty upset at her attitude. What can I do .?