No Experian

Can someone please help me understand how these ***boys can just do what they want with your personal details without any legal consequences to them? I had a Vodacom account that I settled last year in September with proof that I personally delivered to Vodacom Cradle Stone. Vodacom never closed my account on their side and last month they just put a debit order through my account that I reversed at my bank. Experian just decided I am now one month in arrears and is showing it on my credit score. I would just like how is paying for my time to sort out their and Vodacom incompetence.