Debit order date

I am very unhappy with First National Bank services, being a customer with them for so many years and yet to receive such pathetic service is unacceptable. I've app**** for a credit card, my first debit order returned as unpaid due to someone selecting a payment date on my behalf which I did not agree upon. Accounts department was quick to call me to remind me about it, I request for the payment date to be changed, second month same story debit order returns, due to debit date not being changed this month again I received an sms with an incorrect date as, who's credit record is being messed With? I need this sorted out.