No delivery and bad attitude

Dear all I am a Telkom client. On the 24th November i went to Telkom @ Langeberg mall. I asked them to change my wifi connections from 2 meg line to a 10 meg line. The 1 of December at 12:35 one of their technicians called me to tell if I’m at home. He will be in 20-30min time at my home. It was the last i heard from them. On the 5th of December I received a call from someone to tell me they don’t have 10’s. On that stage I was at a function and couldn’t talk. She said she will call me back. Nothing So I decided to give Telkom Langeberg Mall a visit. A lady Esmarie helped me. She was the most unfriendly and arrogant person. Tell me it is at the “powerstation” and they will get back to me. I asked her if she can’t phone them and ask. She said no I must just wait. Now im just wondering....how long must i still wait? Is this how they treat all their customers or was it because of the color of my skin. Im sick of bad service and unprofessional staff members Thank you