Need my phone back - Consumer Complaint for Vodacom - Head Office

I sent my phone for repairs at Cavendish mall on 1st October till now the phone has not been returned,everytime i enquiry im told they waiting for parts but now its a months since you took the phone and im struggling since i didnt get any device to use so long but when it comes to deducting my account they are quick, my job number or reference is 13468425