Technician don't do proper job

Hi, I have purchased my Hisense washing machine in 2020 at Game Fleurdal in Bloemfontein, started experiencing issues in 2022 so far I have request assistance twice since machine is still under warranty, I have relocated to JHB last call logged was due to the washing machine tripping my main switch , they allocated a technician by the name of Welcome he came checked it out & advised to ordering a part , he replaced whatever that needed to be replaced but ever since my machine has been making a strange noise as a result it's not drying my clothes nor washing them. I made contact with the technician to advise him of this & his been promising to come through for the past two weeks I am very annoyed having to do my laundry with my hands whilst I have a machine. When calling his no longer taking my calls.