out of stock

I am trying to upgrade my vodacom contract with a vodacom tab 10. I went to three vodafone shops<br> to upgrade my contract. Only the third shop informed me that the promotion only starts on 15 October<br> and this was the 10th of October when I did the enquiry.<br> <br> I have left my contact details at all three shop. I have phoned twice all tree shops. Evey time I was informed<br> that they are out off stock.<br> <br> on the 15th of October I even went to vodacoms online store. Even there it showed no stock up to date.<br> <br> How can they advertice something they never had, as the tab promosion is on the front cover<br> of their magazine.