Telkom refusing to cancel my account and keeps sending me bills!

I cancelled my account In January and received the below correspondence from Telkom

Hi URSULA APELGREN. Request number for service to be cancelled

********** 491 : ********** 0

Jan 2, 2019, 12:58 PM

Hi CHARIS CORRIE URSULA APELGREN. Request number for service to be cancelled

********** 885 : ********** 9

Fri, Feb 15, 11:41 AM

Hi CHARIS CORRIE URSULA APELGREN. Request number for service to be cancelled

TIN ********** : ********** 8

Fri, Feb 15, 11:41 AM

charis apelgren Hi CHARIS CORRIE URSULA APELGREN. Request number for service to be cancelled

********** 885_1 : ********** 9 Fri, Feb 15, 11:41 AM

However, I am still being billed for this line! I find it pathetic that Telkom does not offer proper customer support and Telkom does not acknowledge cancellations.