Extremely poor service from BOTH Makro and Hisense. 3 weeks and still no dishwasher!

We bought a brand new Hisense dishwasher from Makro Strubensvalley a month ago. It was faulty and the Hisense technician confirmed it. I have been calling and following up with both Makro & Hisense and waiting for 3 weeks without a single person providing me with correct information. Hisense have to release a credit note, but Makro has to request it from them. When I call Makro, they just say they will escalate the query and request the credit note from Hisense. When I call Hisense, they have already issued the credit note but they can’t give it to me, Makro has to request it from them. I phone Makro and the cycle starts all over. At this point it’s a blaming game from both companies, and after 3 and a half weeks I still have a faulty dishwasher and no one that is actually willing to assist. So frustrated!