Poor administration service

Poor administration service. No one understand how to run accounts. First call want to charge me double my monthly subscription for suddenly extra payment on a extra device which was already added to my contract. Then after 3 hours phoned me again and this time extra charge as per accounts im in arrears. But then when i ask to where ive fallen behind as i do have all my monthly payment records,then suddenly they have a different story again. Very poor lack of control in the accounts department. Do they even know what accountant is?