Setting an Expectation and Bad Customer Service

On 25 January 2016 I visited Telkom in N1 City Mall. The consultant/agent that assisted me was Cameron (male). I requested to complete and application for an LTE Router and a Samsung A7. Filled out the Application Form with all the relevant documentation. Cameron informed me that the Samsung A7 was out of Stock and that they can only place an order on a Wednesday. Which of course was fine as my application still needs to be approved. On Wednesday 27 January 2016 I get an sms from Telkom that my application has been approved and another sms stating will I recommend Telkom to any one else. On Monday 1 Feb 2016 I received a call from Cameron where he explained that I can come and pick up the LTE Router and that the Samsung A7 is not there yet. He informed me it takes a week to arrive. Upon visiting the store on 9 Feb, A lady explained that the Samsung A7 has been discontinued since October 2015????? How is my application Approved if the phone has been discontinued? Why was I not made aware of this at the beginning. Instead you kept me waiting for 3 weeks in anticipation? No apology whatsoever!!!! The Manager does not even have the basic knowledge of Customer Service???WTH!!!