Telkom blaming Samsung for not supplying

i have taken a family member and signed up for four contracts, however i am still waiting for the two cellphones which is the samsung A7. i was told that the phone would be in store a week later but its been a month now and im still waiting..A few days ago i was called and told that samsung is now discontinuing the Samsung A7. I believe that this is unprofessional on Telkoms side for false advertising...this is just unacceptable and disappointing....i would like to know what can be done in this situation as i have been waiting soooo long and have spent sooo much money on prepaid airtime. i will accept nothing less from Telkom as Telkom is a major player in the mobile phone industry. However all of the other network providers currently have stock of the Samsung A7.Telkom should provide a proper customer service from their staff as the staff seem to have no interest whatsoever. the staff seems to have a dont care attitude.