Vodacom Fibre relocation issue

We called Vodacom (082135) on 29 December 2023 to notify Vodacom to cancel our Fibre contract (Account number I***-4) because we are moving house and then the agent advised us that there is an option to just do a relocation request and if we do then we will get benefits like 3months free fibre and a R500 Takealot voucher. We advised her that we don't have a move-in date for the new premises but we gave her the new address. She advised that we can still go ahead with the relocation request but that Vodacom/Vumatel will contact us in the new month to arrange an appointment. We then agreed especially considering the benefits like she advised. Fast track a bit and we moved in late January 2024 and contacted Vodacom again regarding the relocation - reference number SR***. They subsequently did the installation at the new house during February 2024. Our issue is that Vodacom never billed us. They've been investigating this for how long now. We are prepared to pay for the Fibre but Vodacom must stick to what the initial agent advised when she presented us with the benefits of a relocation of Fibre. We expect that the first 3 months since activation will be free as advised and the rest of the months we will pay. We also still expect to receive our R500 Takealot voucher as she promised. We will not pay Vodacom for those first 3 months and are willing to take this further if forced to do so. The non-billing is an internal Vodacom issue. Vodacom records all calls so they should have the recording of this call on file.