Telkom and Mondo Mobile worst ever service

I took out a Telkom contract through Mondo Mobile, the agent did not even look for coverage in my area and sold me a contract with 5GB data and wifi router including a phone with very limited data. I've phoned them since December when I went into a telkom shop (for the tenth time) and one of the customer agents there finally noticed that there is no coverage in my jy area, so I've been paying for data and device I can't use for the past six months after every agent so far I've spoken to told me the contract will be canceled and device picked up, since it was neglect on their side. But nobody picked up the device for 6months now and should I cancel debit order it will affect my credit record and they will probably sue. Worst service ever from mondo and telkom. Everyone just pulling up their shoulders and I must keep on paying. Me and my husband has not had cellphone network coverage from telkom for the past 3days. And if I switch to my vodacom Sim as default data user (which is prepaid) then I have coverage for Telkom but as soon as I want to use telkom data (which I'm paying for on contract) then there is no coverage. Wish I never took out a contract with telkom. Vodacom stays number one.