Game online sales

Dear Reader. On 3rd July I purchaced an xbox from Game online, 2 weeks later I log in and it shown item dispached, I phoned customer service and they confirmed, week later I phoned customer cares again and being told no stock, transaction was cancelled. Brad Adriaan send me and email that finance dept is looking in this case urgently, *** I send an email to RCS with my ID and banking details on their request. They rep**** that they don not identify my ID. I do not know what to do anymore to get my money back. Can you please assist me. Kind regards. Poena de Jager. PS. I order then the same item from Takealot and recieved it within 2 working days.