Treat a customer fair

So not happy with your service , what you are doing is wrong and the worse part is you don't even inform the client .You do as you please in my account . Tell me who will reliable for the bank charges ? Who's credit profile will be affected? The worse part like i said you don't bother to communicate with. Last month there was an unpaid debit order which cost me a leg cause of your charge which I was not informed about but I led it slide . You debited my account not on the date we agreed about, fine again I let it slide. What made me angry is the fact that you already had deducted my account and now you go and try to deduct again ? Who will be reliable for the unpaid debit order? Why would you try to debit the account if you already had your money? I tried to cancel or change the debit order and do cash payment was told that they can't assist me unless I cancel their service. Honestly you are pushing me toward cancelling the service with you guys. You have send your bill stating how much you will deduct and I paid what was due of me then why try again to deduct? The rule why does it not apply when it comes to you? I deserve answers and being kept informed at all times should there be any changes.