Beware of add on insurance even when you decline

In recent months I have upgraded two lines with Vodacom. On both I declined any insurance products, but yet on both lines there is contract cover and on the one accidental damage insurance. What is annoying is that it was added when I did decline and to get hold if insurance cancelation is a nightmare and I shouldn't have to be doing it in the first place. Please review both phone calls when I did the upgrades and please cancel the insurance and pass credit on my account as I never requested it. As matter of principle I will report this to the short term insurance ombudsman.