Cancelation and account

About a year ago I canceled my account, well more then a year ago. Reason for the cancelation was dissatisfied with my deal at the time and affordability. I went in to the store to cancel my products and was told that the accounts department will contact me regarding the penalty fees etc..... Witch is understandable, But up to this day I have not yet received a phone call and I have went to the store and called them on 2 occasions requesting them to phone me so that we can put a plan of payment in action, we'll still nothing my account went from 17000 to 23000 and to top it all off my credit record is up to ****, so if telkom doesn't get hold of me in the next 24 hours they will not get a cent out of me and I will take legal steps. I'm not there to do people's work for them, witch they get paid to do.