Makro has not refunded me for an online order that was their fault since JUNE!!!!!!!

Yhooo what a verrrrry bad experience with Makro… Makro does not want to give me my refund… I placed an online order in June with Makro…. That day they had system issues and my order, which was placed in PE ended up in Woodmead JHB… I have been calling Makro since June to get my refund back but every time I call, I get given an answer “ the store is not picking up to cancel the order” or the order will be cancelled tomorrow” or we will call you back… of which they NEVER do!!!! It is October already and Makro still has my money…. So tell me is it that difficult to cancel an online order and refund a customer… if tables were turned Makro would not have even allowed me to place an order…. This is not fair… I want my money back.