***** on contract renewal

I would like to express my unhappiness and disappointment with the service received from Vodacom. I have logged a ***** case of which I was advised the case was concluded and I will be refunded, and contract cancelled. Still today i have been receiving invoices and my account debited. Now I have received the new invoice yet again. May I please have my refund and have the account closed. I do not have a relationship with rewards co. I need this case resolved and refunded. This is taking long and no feedback.