Line suspended due to your inefficiencies!

Some time ago, I changed my banking details with one of your agents. Lo and behold, your inadequacy resulted in an attempt to debit my PREVIOUS bank account. Why was my new bank account details not updated properly? Why did you attempt to debit my old account despite having advised you of my new banking details? Now today, the 12/06/2015, ON A FRIDAY, you suspend my line and although I have had this contract for TWO YEARS, you refuse to reinstate my suspended service. Really??? What a bunch of idiots! Thank you for nothing!