poor customer service - no reply/feedback given

My edgars account was paid up last year may 2017 I paid it at the chatsworth branch and asked them to close the account. We never received a bill since then as I used to get e-statements when the account was active. few weeks ago we have been getting collection calls from an attorneys call centre advising urgent payment of R199 is required. When I emailed accounts@edcon they sent statements dated 2017 may and its R77 for mobile content and insurance I rep**** on that same email telling them the account was closed and I have never received any emails/calls till few weeks ago. Further to this they haven’t even sent a 2018 bill. Last email I got it says my matter has been escalated to that was on the 11th august, but the agents keep calling my landline at home, my ederly mum has to keep answering their call every hour advising payment is required urgently. Its different agents calling all the time. On Friday 17th August I had spoken to an agent from the collections dept advising of this issue and I did email edgars directly, she advised will make a note on the sytem and yet I get another collections call now. please assist as this is unacceptable service. 

Official business reply Thank you for making contacting with us. Kindly note your query is referred to our regional credit office for investigation purposes. The team will revert to you within the next 48 hours to confirm their findings. Please find below reference number for this query: ********** 1028/GO Kind Regards Edcon Customer Relations Team *** I have logged this and still not feedback from edcon . I have tried emailing continuously and still no joy all I get is that it has been escalated for investigation by credit dept yet no one emails or calls to give an update and I have been dealing with such rude agents from MBD even this morning a very upsetting call with them. I sent an email again to ********** but not replies. I have now contacted the ombudsman Case number: 201 ********** 705.