No Customer service

I am now at my wits end after multiple emails - dating back almost a year, as well as calls to the customer service where I received nothing more than arrogance. I have multiple reference numbers for the same query where Cellc Have over charged me (almost a year ago)and do not respond to any correspondence.<br> <br> I have also contacted Cellc's get more division and have had no joy there either. They simply increase charges by 51% without notifying their clients and then you cannot even cancel because they NEVER respond.<br> <br> Worse service provider ever.