Vodacom false advertising

Vodacom offered me an upgrade package with an upgraded device via a third party call center advertising company. The sales person assured me, the upgrade will be only R10 more and be far more suited to my needs and I will receive a new device as a bonus because I have been a Vodacom client for almost 30 years. Vodacom upgrades e-mailed me the suggested upgrade and I queried it, as it differed from the suggestion from the call center, my street adresse is incorrectly spelled and the device delivered via courier is not an upgrade. Vodacom upgrades have not bothered to react to the query. From this it is obvious, that Vodacom staff are only interested in sales and nobody is prepared to take responsibility.