Unable to get hold of Cell C Legal

The poor service by Cell C legal , i have been a client of cell c for the past 15 years , got retrenched last year October 2017 and was unable to pay my account , i received a call from a legal adviser and informed him i will try and make payment , but before the month of February is out my entire service was terminated , a week prior they blocked my no from receiving calls , whats worst im in the job market and this is the only number they can get hold of me on and now not even Cell C legal could get hold of me so as to update them on the payment plan , i have tried today to contact the legal department , waited initially 6-10 min was given a direct no to contact them by customer service which states 'number does not exist' thereafter contacted them again and was waiting for 15-20 min to get through , its just appauling to think after been a client for so long i have been treated this way , i am liable for the outstanding amount and wanted to make terms for payment and to retain my no as that my only contact no