Un-educated workers

On 23May I wanted to upgrade phone had a hotline limit lock on. At shop they couldnt upgrade with this. I sat there 3 hours and no lick. I was told to come back 24th maybe the message would have 'Cleared' on 24may still it was same problem..i was told to call the call center as they cant help me. On25 may I spoke to a lady she logged a call and never helped. I called 2 hours later another logged a call and promised to call back. She didnt know what was wrong and couldnt help. I called later same day and spoke to a team leader. He said he will call back after he spoke to his manager to try and get a solution. No surprise again no one called back. I called 26may tried to speak to that team leader no one knew who it was. I spoke to another team leader. She logged a call at tech dept and finally I got help 4days later!! Called the shop to check if my gold s6 was still avail. It wasnt..they didnt offer to source one I asked if they could try. The lady at galleria said she will try and call me back today 28may before 2pm. She never called. I called 16.30 and was told she is busy with customer and will call back. She never called. Shows that cell c want to lose customers! Dissapointed!