I also found that the warranty is just on the fix (and associated work) & not the complete machine. That must be what your consumer rights are any way.
Which somewhat erodes the point of getting it fixed and having a year's general warranty, which I believe was implied earlier. There's probably some leeway and it depends on what percentage of machines come back under warranty claims.
I still maintain that if you can buy a new machine with a two year collect and return warranty for a couple of ton, it places a definite limit on what it's sensible to pay to get a similar machine repaired. £50 all told I'd say, but that's just me.