Poor service in Vodacom festival Mall

On the 31 of December my husband visited your branch in Festival Mall to renew his contract as he needed a new phone for his new business and he informed the consultant and ended up taking hauwei nova .... That turned out that it not compitable for the system he needed the phone for he called Vodacom call center and he was advised to return the phone within 7 days then he will be able to take another of the same value at no extra costs to him.Wednesday morning he went back to store and he was advised of all apps that he need to school install inorder for the phone to work but for his surprise he had the same problem. Today he went back In the morning and the same story was sold to him but this afternoon he received a sms informing him that his account has been suspended because of his phone as it uses clone maps .He went back to the store and was told straight in his face that they will not take the phone back or change it as it does not have any factory fault.So now that the seven days have lapsed and the phone is not doing what we needed it for what else can we do because come month end you will be expecting him to pay . Clearly Vodacom is now a ****a shop you do things your own way regardless of your promises to customer .