Sending Customers expired specials!

I am unable to understand the management of Capegate Spar's inconsideration to their customer's! This week l received a sms from said Spar advertising Nescafe Classic 200g for R45.99, among other specials! As l use this brand of Coffee l requested a family member to please purchase 2 x jars for me which was inconvenient for them, as it was out of their normal route! On arriving at Capegate Spar it was discovered that the specials were not available via a notice on the shelf, that the SMS was sent to consumers by mistake! My question is: If Spar is able to send out 'mistake' product price smses, then why not have the consideration to send out a SMS advising the Customer that it is all a 'mistake' so preventing disappointment, a waste of petrol, time and airtime! I am upset at the fact that l put someone in their kindness to going out of their way for me, for a 'mistake' that is the responsibilty of Capegate Spar to rectify, not to just leave it expecting customers to be advised by a notice on the shelf! Very UNACCEPTABLE to me as a Spar customer! Please delete me from your SMS advertising, as it is no longer of interest to me! Thank-you! Also Spar Kftns out of stock of general items