Just posting to give an update on the situation.
I've spoken to my grandparents today, they had decided to try getting the machine repaired. The repairers took it away and it seems they fitted new bearings but then discovered that the spider or spindle? has broken and that the machine couldn't be economically repaired and it has been scrapped.
I'm quite at a loss that they couldn't have established the machine had more serious damage before ordering and fitting parts to it. I have no idea how much this "service" has cost my grandparents and didn't want to pry in case it upset them.
They have also told me that today they have ordered a Hotpoint from Currys
It's all going to end in tears