The worst ever!!!!! They could not be bothered of their incompetence...

I closed my account however Vodacom still claims that i owe them,,, of which i don't. They debited my account and took the last premium and then closed my account. Now this is impacting on my credit record because i am now listed for a debt that i know nothing off. I have been struggling to obtain a paid up letter from Vodacom so i can send the letter to the different credit bureaus. This is the worst thing you can do to anyone. I regret the day i took that data contract. I sent emails, went to Vodacom Cresta, called their call centre and every time they tell me that my case is escalated or my case is closed. Up until today i have not received any assistance...