Invalid contract

On or around September 2017 I signed a contract for the Wi-Fi and cellphone package with Telkom. On the subsequent delivery of the hardware I discovered that there's no coverage in my area and therefore could not use the Wi-Fi. I contacted Telkom on numerous occasions and spoke to different staff members with all the process as listed below: 1. Maxim on 2017.11.21-checked and confirmed that there's no coverage. Promised that the contract will be cancelled and they will send courier to collect software and refund the subscriptions. No show 2. Bavisha on 2017.12.07 Same as above and added that the matter has been escalated to their back office for approval. Again no follow up response 3. Mbali on 2018.01.26, assigned case number ********** 7. Informed me that a technician will call within 48 hours . No show. 4. Nosiphiwe on 2018.03.02, referred to Sibusiso(Technician) who stated the matter is at the back office for approval and I will be contacted in 48 hours. Again no show. 5. David Nxumalo on 2018.03.28 who again stated that the matter is in the back office for approval. Promised to have her superior Charmaine Ma***o contact me and to date no follow up. Now all these times I'm spending my money to call Telkom and each time I called I'm given same excuse and empty promises. I have a debit order that is deducted every month however I'm not enjoying the service. Telkom should have confirmed coverage in my area before promoting and selling their product to me through the agent Mondo. There are available technologies to ascertain if the area is covered and that was confirmed by Maxim in November 2017.

All I need is for Telkom to cancel the agreement, collect their hardware, refund all subscriptions to date and refund all the costs incurred in resolving this matter.