Incosiderate & *********** Staff Members

So On the 19th of Septermber I took a contract with Cell C, for tablet the deal was good but little did I know will put me through so much emotions and endless heartache. At first the sim card wouldn't work on their Tablet then I called was told to swap sim cards to see if is the phone or sim that has a problem. I did that when I called again to tell them Voda sim working on gab and Cell C works on Voda phone they say they will send another Sim Card then I sim card then I follow that on Friday 29th I call for sim swap then I'm told after 4hrs it will work then after that time sim not working. I call back again on Monday 2nd October speak to the guy named Bongani then he says everything will be sorted on the day then I waited whole for him to call me back he doesn't then I call contact centre again around 7h15pm as he told me they work 8am-8pm I'm told no sim swap was done on the sim card. Then I request they cancel whole deal as now is really not worth it as I'm getting **** service then the lady by the name of Palesa was assisting me then cut the call as I was giving the details of the device, call back speak to another Daisy who said they unable to assist me she doesn't know what Palesa was doing again the call gets cut, I called for 3rd that spoke to Londiwe who told me the department work until 6pm call back tomorrow there's nothing we can do who didn't even want to hear what I was saying phone gets cut!!! I called again spoke to Xoli (a lady) who said 1st sim is active but 2nd one not working asked me politely to please call back on Tuesday Morning. Then I called on Tuesday spoke the guy called Siyanda told him whole story then he asked if they could do sim swap then if it doesn't work he will order collection for device. then he that still after about 2hrs called by Anthony for sim swap who said the phone will work at 13h40 waited at that time I still had same problem I called Cell C call centre to request they collect the device spoke to Angela who said device will be collected but contract won't be cancelled LIKE REALLY??? IS NOT EVEN MY FAULT BUT CONTRACT STANDS!!! And she still advices that the debit order will run Cell C will check and get back to me with final decision. All this was done within 7 days they give the client to change their mind on the contract but I'm told contract stays. It's just unfair that I will have to pay for something that's not with me. at least if she said they will put everything on hold until device is fixed. I still have the device they haven't collected it and when I call now I'm told it will take 7 working days to be collected and then they will get back to me in another 7 working days. I think this is really unfair and also cant be lawful!!! And follow up department is also just not assisting at all.