Harrassing customers

I recently cancelled a data-month to month contract with Telkom (I was advised to cancel before a particular date, which I did!) however they keep harrassing me!!!! I get text messages saying "your account has been suspended due to collection"...something along those lines so I wanted to write a review of how they nag their customers even after they don't require their services! Dear Telkom, please **** off!!! Leave me the **** alone! I cancelled my contract at Cavendish square, Claremont and they promised me that my contract is cancelled so why the **** do you keep sending me these stupid messages. Please don't bore me with this nonsense, if you think you can **** me then you need to think again because I am not stupid!!! Go to hell!!💩