Just been through similar. Our machine was 6 years old and when I actually sat back and thought about the amount of use and abuse it had during that time I concluded it not worth gambling on a repair.
Got next day delivery from AO with Quidco cashback as well. Got a Beiko machine for about £360. Got some good features as well, internal LED lights, variable height top drawer and a utensils tray at the very top. Best of all, it washed dishes so I don’t have to and that is a good thing
zero faffing, didn’t wait around for engineer, parts or unknown costs. Accurate delivery slot from AO, they took the old machine away and the guys chucked me a spare wast hose from the back of the van as they saw I was re-plumbing my washing machine whilst they were there.