Bad customer service on product sales

I have a very bad experience with these people. My mother bought a second hand Samsung washing machine in December 2019 under a six month warranty and on the day of purchase they didn't explain what does this warranty entail. Now 3 months later the machine stopped spinning and due to this lockdown they were closed and we couldn't report it. They reopened on the 1st of June and I was there to tell them about it but they refused to refund it but offered to take it in for repairs. While my mother is a elderly person and can't wash by hand the manager of the Silverton branch where we bought it didn't even care to give her another machine while they are fixing hers. They promised to come pick this machine up but since then we are still waiting.