Vodacom non delivery

I have decided to turn to this forum for a review as I have received zero support from vodacom. I recently wanted to end one of my contracts with vodacom,I have 4 at the moment,as I have been unhappy with their service. After contacting the cancellations department they convinced me to stay with them by offering me a good phone on a well structured package. The reason for the upgrade was due to my wife's phone being faulty so obviously we needed the phone as a replacement for her faulty one. The call centre operator assured that delivery would be within 48 hours. After concluding the contract and receiving a sms to confirm the contract I eagerly await the delivery of the phone. After 3 days and no correspondence from vodacom I decide to contact them. They inform me that there is no stock of the phone and I would have to wait for stock to arrive. Obviously unhappy with the circumstances I ask to speak to a supervisor,to which the reply is there is only one available and they are busy on a call but will contact me once they are done. The day passes with no call back. The following day the same scenario plays out. The third day I say I will hold on until a supervisor is available. Eventually after a long wait I get to speak to a supervisor who tells me that there's nothing they can do I would just have to wait for the stock to arrive. I was not happy with the response and asked for a manager to contact me as I need a phone for my wife. No call back from a manager as with the supervisor. I called vodacom direct every day for a 2 week period every time wanting to talk to a manager with the same reply of they're not available but will get them to call back..........with no response. Eventually after two weeks I get a message from vodacom to say the phone is with the courier and will be dispatched shortly. Eventually the phone gets delivered but here's the kicker,with the package they offered I would receive a pair of huawei free buds earphones but on receiving the phone.....no headphones. I contact vodacom to hear that there is no stock of the headphones...***. It will be sent as soon as stock arrives. I waited about 2 weeks with no response from vodacom whereby I contact them as per status quo. I get the same run around daily as I received with the phone. No reply from any supervisors or managers. It's now almost 2 months after renewing my contract and still waiting. Vodacom I would like to know if this is acceptable buisness practice. You are a service provider that delivers no service. The fact that you offer a product and it is not available is false advertising and not delivering a product that is paid for is theft. Craziest of all in the interim I have another of my contracts that is due for upgrade and here I am inundated with calls and sms's from you to renew my contract. So to get me to give me you my buisness you have no problem with communication but once you have my buisness communication ends. I hope somebody from vodacom sees this and can shed light as to why vodacoms buissnes acumen has deteriorated to such an extent.