Subpar customer service - lack of accountability

On the 6th of June, I bought 24 1litre Oros bottle online. The next day something else was delivered. Logged a return and refund the very same day. Return was approved. Thereafter complete silence from Makro. I call in every week wanting to know what is the hold up in the collection, each time I've been told the matter has been escalated, but no feedback. I've call the branch and left messages to be called, but no one calls. I receive zero communication from Makro and no clear steps are given. Worse customer service. I can't believe the third part vender OneCart beat your own services.