Adding things onto my account without my consent

Good day, we relocated to Paarl last year and Telkom moved our line from Bellville.After we received our fist bill,you added a softcap of 10GB to our uncapped line.I disputed it,after being promised that you will sort it out.Nothing.We called the call centre and visited your shops numerous times,and many people promised to assist.Nothing.In December we were told by your Paarl Mall branch that you cancelled our line.We accepted it,because we just wanted to be done with the issues.Now we received a bill of R3,371 outstanding,including the month of December, January and February, which was supposedly cancelled in December.Telkom Cape Town in Adderley vowed to help,but still NOTHING.I am in tears,because I am so frustrated with your lack of customer care.WE WANTED TO PAY IN NOVEMBER LAST YEAR,BUT YOU BREACHED OUR CONTRACT BY *******LY ADDING THINGS TO OUR ACCOUNT,WHICH WE WANTED SORTED OUT BEFORE PAYING.BUT NOTHING!!!!AFTER YOU TOLD US THAT YOU CANCELLED OUR LINE IN DECEMBER,NOW WE ARE BEING CHARGED FOR ANOTHER 2 MONTHS,BUT OUR SERVICE HAS BEEN SUSPENDED SINCE 23 DECEMBER!!!??NOT TO MENTION INTEREST,BECAUSE OF YOUR MISTAKE!!AND ON THIS STATEMENT,THERE IS RECONNECTION CHARGE?FOR WHAT!!