have been send a contract without my consent

I did not know that a company as big as Vodacom has to turn to ***** to get clients. I was called by Vodacom on the 12th of October to give me a contract phone which I declined. on Wednesday the 14th a parcel was delivered to my husband by ram with no details and the courier not wanting to take it back. when the parcel was opened we found it was a Vodacom contract. I immediately phoned Vodacom and was told that it was a mistake and the contracted was cancel they will have the phone picked up. on the 20th I was called to pick up the phone and it was never picked up. in the mean wile my account was debited when I phoned Vodacom again I was told it is not there problem. I want my money paid back to me and the phone picked up. it is a pitty that a big organisation like Vodacom have to do this type of business.