Abusive Behavior - Account Id: ***

On the 27th of March I requested a downgrade to 25GB Fixed LTE - I was assisted by Mr Dirk Ottersbach at Sales over the phone. Afterwhich received a confirmation email with a QuoteTxContract attached - order X***, I responded with an acceptance email responding as directed by Mr Ottersbach. Despite this change, I have been receiving a statement billing for 150GB month on month since. I have equally communicating with Mr Ottersbach concerning this matter, to which he assured me that it had been escalated. But to my surprise, I have been served with threats and notices of my account being cancelled and handed over to legal. Even today I received a call accusing me of failing to pay them.