I am extremely dissatisfied with the service I have received from Russells Randburg regarding a faulty microwave I purchased from them

I am extremely dissatisfied with the service I have received from Russells Randburg regarding a faulty microwave I purchased from them. Six weeks ago, I returned the microwave because it was not working properly. Since then, I have not received any communication or updates about the status of the microwave. Despite my repeated attempts to get information, Russells Randburg has failed to provide any updates or resolve the issue. Additionally, they have refused to return my money. This lack of communication and failure to address the problem is unacceptable and has caused me significant inconvenience. I am requesting immediate action to resolve this matter by providing me with a new microwave. The current situation is not only frustrating but also unprofessional. I urge Russells Randburg to prioritize this matter and resolve it as soon as possible.