Please cancel my Mobile Wifi contract and refund

Hi VC<br> <br> I have a mobile wifi device R206-Z. This mobile wifi has 5g and 5g (10g in total) and I have been unable to use it due to a faulty device. I have phoned the retail guys so many times and they say they are sending me a guy out to come and fetch the device to test it but nothing yet. I have literally phoned so many numbers because I am getting passed around from one to the other as VC state they cannot handle the query as it was bought via the phone (retail?) At this point I dont care who's mandate it is to sort out - please just come and collect it! I have had calls from Vodacom and when I answer they are talking in the background and do not hear me speaking. This is then logged as a miss call as I get a message soon after. When I call back, i have to reexplain the entire situation all over again despite quoting my ref number!<br> I need to receive a refund on all monies paid over for this contract that I have not been able to use (since December last year) as well as reassess my entire contract. I am considering pulling my other 2 contracts as well with VC.I have since had to get a line installed as I needed Internet access. Please can you cancel contract. Please can you help?