The drum on my Indesit W103 washing machine seems to be very loose, it makes a terrible noise during the wash cycle and is also leaving black oil spots on the clothes.
The main drum bearings are worn out.
Any competent engineer can fix it, but it's time-consuming & therefore probably expensive.
Get a repair quote, but be prepared to buy new because it might be cheaper.
Sorry to be the bringer of such bad news.