Bad experience

I paid of MBD-SANDER Bank, as per arrangement instead of receiving a call to confirm payment received and when I will the paid up letter. I am getting a calls regarding making payment, i am not sure whether the staff at MBD make notes or read the notes made. The thing that is really getting under my skin is that when I wanted to settle the account I had to i ask for the outstanding amount I than give up as I was not getting it as explained to one of the managers my frustrations. This is the worst ever like it's so bad. Just getting a call from them makes me so angry because MBD house keeping is not good