Poor Vodacom service

I had a cellphone contract that I took with Vodacom more than 5 years ago and was always renewing it until last year when I decided to cancel it after the 24 months period was through.The last time I renewed the contract I was offered a package which included a Huawei P10 and a Huawei Y8 which I was to receive monthly airtime on it.All this was explained to me as a package which was all under my main number which I've been using for years.Last year when I decided not to continue with the contract I called in asking that when the contract ends they should cancel it.I then later realised a few months ago that I was owing vodacom some money which ch came as a suprise to me because I had cancelled the contract.When I eventually called Vodacom i waa told that on cancellation i only cancelled one contract and that came as a shock to tme because according to.me Ive only ever had one contract with Vodacom.Thats when the lady who was assisting me said according to them it was two contracts and I had only cancelled one,and the other one was still active.I never asked for two contracts,the phone that i was given which came with the Huawei P10 I was told was one package not that it's a second contract hence when I called in to cancel I just said I am cancelling my contract and didn't see the need to specify which one or how many.Two weeks ago I called into the cancellation department where a lady who assisted me said she will escalate the matter and I should receive communication within seven days as I believe now my case was at their pre legal department.On the 18th I received an sms with ref : *** saying they have escalated it to the relevant people,next day I get another sms saying my query has been closed.I was buffled because how does a query gets closed without a resolution or calling tje client to explain of the conclusion and way forward from there?Is that how Vodacom operates,they do a half job and then leave you hanging with no explanation whatsover?Ifeel in the first place my name shouldn't be there as I was not told of having two contracts hence I called in time to cancel and now have to pay for your employees mistakes.Not only did you treat me unfairly but your customer care sucks big time.I took my time to call in,the least I deserve is a call to be told about the resolution to my query.After all this hustle,I sure am not going to get another Vodacom contract ever again