Non-Existent service on faulty products under warranty

Purchased a Defy fridge in Aug 2024, January fridge was freezing and unfreezing, took 6 weeks to get Defy here, replaced thermostat, same issue, another 6 weeks to come back, earth wire reconnected, same issue again weeks on end to get someone here, finally agreed there an issue and escalated for replacement, got the new fridge finally in June, having same issue and on top of that the door doesn't close, spent thousands on thrown away food and airtime holding and calling, emailing, going round in circles with NO resolution, Makro keeps referring back to Defy saying they will escalate for a service call. This is unacceptable I paid them and bought from them and I want a refund or new upgraded model and compensation for my costs. The empty promises to call back and to help are exhausting, time consuming and costly.