useless manager

Went to vodacom at Southgate mall on the 6th and I settled my contract and took out another. They gave me a Nokia 5 and two days later the phone was faulty and I took it back to the store on the 9th.

The manager told me that the phone will be sent for repairs and I told her and the consultant Grant that I do not want a repaired phone, either they give me a new phone or cancel my contract. Today I called the manager and the contract is not cancelled and she tells me I will get a phone after 14 days. Can vodacom please cancel this contract I do not owe you please.