Signed up for Disney+ without my concent

Got an SMS saying that my Monthly Disney+ plan has been activated without me signing up for the service. When I follow the link to see if I can unsubscribe, there is no option to cancel the subscription. II don't want anything Disney link to my phone number or account. Who does Multichoice think they are to do this on my behalf without my consent? This is the last straw. I am cancelling my DSTV.