WORST SERVICE FROM VODACOM EVER

I am currently receiving extremely unsatisfactory service from Vodacom. I want to cancel a deal with a laptop that is not working. It's been now more than 2 months but they are just giving me the run around. You can speak to their call centre only or make use of the app, but thereafter nothing happens. They keep on charging me for a device that is not working and did not work from the start. I already have 4 reference numbers. Every time they are blaming RAM that's not picking up the laptop. I phoned RAM as well and they again says Vodacom must log a new request for them to come and pick up the item. I do not know what to do anymore. How do one go about to report Vodacom to the Ombudsman or to actually speak to someone that knows what they are doing? And o, by the way. We went to a Vodacom store twice to ask them for assistance, and both times they said that they can not help. We must work through their Call centre. What kind of business are you guys that do not want to service your client that is probably already more than 10 years a client??? The cherry on top is that the costs has acculuated to +/- R1500 already and now I get messages to say my account is in arrears and if I do not pay by the end of the month it could lead to them cutting all my other services which are three cellphones and a tablet of which we have never skipped any payment up to date. Can somebody that actually has authority just call me to sort out this issue. For us it is a simple request. Cancel the laptop deal. Com and pick up the laptop and refund me with all the charges you are billing me for an instrument that never worked in the first place?