Telkom store corkwood mall worst service experience

I had a faulty Telkom ADSL router I logged a call with telkom on the 23 Dec 2022 and received a ticket number ref ***7.On the 1st of January 2023 the incident logged was closed due to the fact that the router was faulty as per the technician that came to my house to attend to the matter.I was advised that I can go to any telkom stores as my router is still under warranty they will exchange it or repair it.I then decided to take it to the Telkom store at corkwood mall uitenhage, which was where I received the worst service,The first agent that I was assisted by was not sure of the process and calling her line manager as he was in leave but no reply. The agent then took my details and was advised that she will give me a call and advise.A whole week went passed still waiting for her call.I then decided to go back to the store to find out if she had any information for me as yet,upon my arrival at the store again I was advised that the agent is on leave.To my surprise I was helped by another agent by the name of Chante which I was also promised by her that she will phone me back.It is more the 3weeks already no wifi at home can't work from home using my laptop this is the worst service I ever received. A big training need is needed for agents as they have a lack of customer service and product knowledge and processes.