Vodacom it's not doing writer to their customer.

i got a contract with Vodacom which ended last year December . I was given an option of continuing or cancelation of the contract since it ended so I cancelled the contract. To my surprised i got the SMS that tells me that my account is in arrears, tried calling asking what was happening I was told that I should wait for the cancelation SMS , never received it till today and the account still palling up when you call the 082135 number they will take you from pillar to post ,I disappointed in Vodacom I used Vodacom for years its being 25yrs i never thought of other network company . but now I think I should consider other network companies.