****ming and dirty sale tactics

Got a phone call with a member of the team offering phones with our current contracts. Declined and thought that was it. Next thing you know I get notifications of packages being delivered. Not only did I explicitly state no to any of the additional promises, but Vodacom seems to be unable to cancel the "upgrades" and the courier is unable to send it back to the sender. If I get charged anything other than our previous contract we'll simply refuse to pay