Online purchase nightmare!!

I received a fridge on the 27th of May, discovered it was faulty logged a call and on the 3rd of June the tech came and said there was an internal leak and the fridge needed to replaced.I called your customer care on the 4th of June to inform them about the findings of the technician they said they will log it with Hisense. But days went by no one contacted me so I called them and they gave me Hisense contact details I called them and they said they were waiting for a credit note from Makro, and this is after two weeks. I informed your customer service and they said they would do it, I made a follow up after a week no credit note was done and no clear explanation was provided. On Monday(6th of July)they said they have escalated the issue with Hisense and I will receive an update with 24 hours.As I am typing this i am on my 3rd call with your customer support to speak to a manager and I have been told to hold and I have been holding for over 30 minutes now