Unsatisfactory service

This is regarding after service with some repairs still falling under a guarantee and some paid. I hand in a LG microwave oven with a disfunction at end of June 2020. I took photos of all sides after a minor scratch on the left side was noted at the service counter. It was repaired after lots of communication difficulties at Macro. I had to follow up repeàtedly also on district level as time passed with no feedback. On 6 August I could fetch it at Makro. It was scratched badly on the right and front. Fortunately I took before pictures at their service desk as they wanted to immediately dissmissed my complaint. After long considderation they decided to take it up with the repairing company. A manager, Given followed up on 2 September and assisted with no succes for a further month. They wanted to pressurise me into taking the it as is. I refused and anothor manager, Arrie, 10 October took it up and handed it over to another person. This lady called me around 4 times in October with no good news. During her last call last week she promissed to switch it or pay back money and would send photos of possible models that they have to switch. I ecplained that my model have extra functions and that was what I needed. Yesterday, however someone at repairs counter called to ask me to collect my microwave as it was returned from the repairing company. I asked her to communicate it with the managers involved and have not heard anything since. It is now more than 4 months since I hand it in for repairs, whitch also had been paid. I have not had the chance to test the work and have been left without a replacement?? Certainly the repairs had a certain time as guarantee for the work being done. I feel extremely frustrated.