Poor customer service from vodacom

I had a Vodacom contact for over 3 years before I upgraded. When I signed up they told me that it would cost r500 per month for 2 phones and 2 Sims. They also mentioned that I would need to wait until the end of August for it to activate which was fine with me as the contract was only agreed to in July. Came the end of August I put in the new SIM only to realise that my services had a restriction placed. When I called customer service they told me I owed them about r320. This didn't make sense to me as I expected the new context tariff to come out at the end of August. They them told me that I need to pay a connection fee. I explained that this was not discussed with me when I took out the contract. I asked to speak to a manager. They said they would log a ticket and a manager would get back to me. I called a second time and still no response. I was arranged with no phone and my wife had been in and out of hospital due to complications in hey pregnancy. I had to work and borrow phones to keep in contact with her. Is more than 2 years and I've been handed over to debt collectors but Vodacom took no interest in resolving my query