Double Charged then cannot access the service

On the 28th of July I tied to purchase the annual credit report as I do every year for the amount of R321 and the system kept declining me, then on the 30th of July I tried again and the online purchase went through and the reports were available online. Two weeks later my profile was locked and its requesting I purchase again. I was charged on the 28th and 30th of July on my cards, I cannot get through to the call centre and the whatsapp line cannot assist. I have emailed and no response for over a month.