Product advertised and withdrawn before exp date

Vodacom advertised a product on contract at GAME in the West Coast Mall, Vredenburg. My husband signed a contract for this specific contract on Saturday, 1 Aug 2015 for the contract. The whole verifying process was done & approved, but there was no stock available. They said they will received stock the next week. On Wednesday, 5 Aug, I called and they confirmed that they received stock and I can come to pick it up the following weekend.(We are +-200kms from Vredenburg) On Friday, 7 Aug, Rowena from GAME called me and told me that Vodacom withdrawn this specific package. I was not impress and called the shop's assistant manager (Sheraleen). Tel nr ***. She called me back and told me the same story. I called Vodacom's customer care and told them my story. The guy suggest that I send an E-Mail as the exp date of the packages was Monday, 10 Aug and he is not on duty this weekend. Sent an e-Mail and received ref nr 0058\8QYH and confirmed that an agent will call me within the next 24 hours