Put it on an empty 90 wash. Leave the door open over night to “air” it out. Check the drain filter and the pipes leading to the outside (if you can) Maybe try Calgon?
Are you able to remove the ‘blade’ parts inside the drum? Not really sure what they’re called. They can get really gross inside! X
I put neat bleach in the drawer and set it on a full 90 degree wash. Then wash out the drawer afterwards to remove any traces of bleach. Remove the drawer completely and scrub it in your sink. Wipe out the compartment where the drawer fits as best you can (can be awkward to get your hands in). Then I clean around the seals of the drum, making sure to get right into the edges (it’s amazing how quickly dirt and fibres build up!) Finally I wipe down the door and the front of the machine with some warm soapy water and a clean cloth. I would also try and clean the filter out at the bottom of the washer (mine is self clean but I check it regularly anyway) Google the make and model of your washer and you will be able to find an instruction manual to tell you how to clean the filter. Hope you get it sorted, I can’t stand a smelly washing machine 🤢
Have you checked the filter? I’d also ask the landlord/agency to send someone to clean it.
That sounds gross. I’d try hydrogen peroxide, vinegar and essential oils. And clean the filter. And also run it on the hottest longest setting and let it air out afterwards. I hope you get it sorted!