bad service

I purchased a nescafe alegria coffee machine first on the 24th december and it was faulty so I returned it to the store where they provided me with another machine on the 31st december. This one is now faulty again and makro refuses to provide a refund saying that nescafe needs to authorise the refund. They are selling the items so I don't see why they need authorisation from nescafe. Terrible service.