Unacceptable sales and service

We have recently received Fibre in our area. There were gentleman walking around from Telkom asking clients to upgrade. A gentleman by the name of Yanga assisted me with the application to move to fibre during the first week of January. He advised that they will upgrade by current ADSL line to Fibre and it will take up to 3 weeks to install. He also advised that they are running a January promotion and with the Fibre you get a range extender and LIT box for free. we completed the documents and all this information was added to the agreement which I signed. 3 weeks went by and I have received no feedback so I contacted him on the cellphone number he provided to me. He responded stating that the order has already been processed but no one came to install anything. My mum then received a call from Telkom whereby they confirmed that the device was installed but yet again no one has been to our premises. I then called Telkom on Monday this week and the lady I spoke to advised that the application was not processed as yet and that a new application will need to be done. however they cannot provide the free extra's promised in the first application as it is now February and that was a January special. she then also states that it is only for new clients and not existing clients that are upgrading. it is not my fault that TELKOM employs staff that provide incorrect information. as per the documents that I signed I was promised the extras so why am I not receiving it now or is that just tactic that is being used for clients to sign up? thereafter once signed up they are *****ed over? I then received a call from another lady from Telkom on Tuesday this week stating that she wants to sell Fibre to me. I explained my situation to her and advised that I will be logging a complaint which she said I should not do and that she will get back to me. To date no one has gotten back to me. They are installing the fibre today and the extras were not supp****...why is this as the contract I signed has the extras on it? not my fault that your staff members are not trained properly and provide incorrect information... I want an explanation and something done about this as clients cannot be treated in this way.