APPALLING CUSTOMER SERVICE AND FALSE ADVERTISING

My order number is U859649. I ordered the new S6 Gold with the free Galaxy Gear watch on Friday evening (21st Aug 2015). I received an sms to say I will receive additional information regarding my order. Come Tuesday (25th), nothing. I contact the call center only to be told that my order should be cancelled as Vodacom will no longer be providing the watches. ***? How is it my problem that Vodacom advertise a contract with a device and then run out of stock? I have been with Vodacom forever and have 3 contracts. This is absolutely appalling and shows that Vodacom doesnt give a sh*t about their customer base.