Device insurance - not agreed to

I received a sms today stating that I took up device insurance from Vodacom. When I phoned the Customer care line i was informed that it is outside the Insurance helpdesk number and that I need to phone during office hours. if Vodacom is issuing ********** products to client's they must be willing to service them 24/7 to correct their errors.. I never took up insurance form Vodacom, when I did upgrade my current contract in the end of October 2021, I informed the salesperson at Vodacom that I don't want device insurance. I never agreed telephonically nor did I respond on correspondence that I want to take up device insurance.. this is what you get when you are a loyal client since 1998 and the account was never in arrears