The level of incompetence is unbelievable

I received an invoice quoting 'basic electricity' so I rep**** asking what it was for. I received an email back from Marlise saying she no longer works there (which is strange because I rep**** to the initial email straight away). She said I should email Theresa, which I did. Theresa did not even bother to respond to the email, so I emailed the reception email address, which I sent my initial documentation to. She responded to say that I should email Louise which I did. I then received a notification that my email could not be delivered because the recipient's mailbox was full. I then forwarded this to the reception email again with no response. <br> <br> Is this a mickey mouse company? Their customer service is a joke, and I find it hard to believe that it is a business to be be taken seriously. Never before, in all my life, have I see such incompetence!