I was sent latest corporate promo deals by MTN in Mount Edgecombe with very cheap combos and within a day I applied for 2 of their offers. These offers were valid till 30 November 2013 as per the advert that I still have a copy of. They are telling me I can not get the devices I requested as the promo is invalid. The "latest' promo sent to me is more than double the original promo price. Is this allowed? I still want the original promo as it is still valid as per list sent to me.