We cannot cancel Telkom services!

So here we go again... We requested cancelation of our home land line (Acc. No. ***) when we changed over to Fibre about 1 year ago. And again several times since then. The accounts kept coming in with the usual monthly charges. Eventually the service was "suspended" - We have moved in March 2019 and we still receive monthly charges billed to the account on a monthly basis. We receive sms messages like "...please note that your service cancellation order: *** was successfully closed." BUT then the billing continues - how do we cancel???