Dialdirect do not listen to customers

Was happy for the great service I received when taking up a new insurance product for my new car last week Friday (2019/08/16) but only to find out the following week that they did not listen to my requested to be debited on a certain date and as such I now have a returned debit order on my account, and to top it off they tell me to expect another debit order on a day I did not ask them to debit me on which will make it two returned debit orders in the same month on my account. This is really unacceptable because it is my credit record they are tarnishing and all they can tell me is that they are sorry it happened.