Unauthorised changes to personal information

I complained in March that there was someone internally in Multichoice that was changing my personal details on my DSTV profile. Today, when I tried to access DSTV Catchup via the internet I see that my email address has been changed on my profile. Doesn't Multichoice understand that allowing unauthorised people to access a customer's personal information opens them up to legal action for contravening the POPI act? This will be my next step before I cancel my DSTV subscription.