Vodacom East rand mall

My phone went in for repairs on the 02/05/2018 and I received a message on the 08/05/2018 that my phone was ready for collection so I phoned vodacom East rand mall and told them I'll collect the phone in the afternoon where they told me the phone can't be repaird I have to collect a new phone. When I arrived they told me they don't have my phone I'm stock and they wil place a order and I can collect the phone within 3 working days. A went back a week and a half later and they never placed a order. They promised me they wil place the order and within 3 working days again I can get my new phone. It's the 20/07/2018 and the last I heard from them was 23/06/2018 and stil I didn't receive my phone.