NON RENEWED CONTRACT - THREATENING LETTER AND BLOC

I have received a threatening e-mail after I had sent communication to Cell C that I will not be renewing the existing contract number *** and the contract ended at the end of January 2015. You have no right to do this as I refuse to renew the contract because of shocking service and double deductions. See below e-mail I received - an I am sure this will not be rectified!! I will be taking this to Hello Peter as well!!!!!<br> <br> Dear Miss. Beverley Salmon ARREARS ON CELLULAR ACCOUNT:ACCOUNT NUMBER - *** <br> Please be advised that your account is overdue. Kindly settle the amount of R306, which is now due and payable within 2 days from date of receipt hereof. Should you not make payment in full within the 2 day period, your account will handed over to our Intermediate department for action to be instituted against you for the recovery of arrears. Please deposit your payment into our bank account:<br> Nedbank Corporate Client Service Account Name : Cell C SP (Pty) Ltd Account Number : ***<br> Branch Code : 145 405 Quote you Cell C cell number as the reference or CELLULAR ACCOUNT NUMBER as mentioned above. Should you have settled this account in the interim, please ignore