Telkom are ******* and ********** and basically stole more than R40 000 from me

My upgrade device was ****** through internal means, they continually fail to open an investigation but i have to keep paying for a device i do not have. If i want to cancel my contract i have to pay R40 000 as the ******* renewed the contract. Our details were changed without our consent, the delivery address was changed without our consent. All of this took place without our approval or knowledge and we only found out about this a month ago. We've had excuse after excuse, the lady who supposedly opened the case for us and kept telling us its under investigation was lying. I want my money back for a device that was ****** in June that i've been paying for and i want this contract cancelled!