The seller wants to collect it for inspection and possible repair, which is fine apart from the fact that I know it's going to keep happening and they won't continuously do that will they, I said that I would like a refund as I'll need to look for a different mower but they said I would probably end up with another mower with a similar blade boss as that's how they are made now, obviously manufacturers milking the consumables after sales market.
Someone mentioned fitting steel bolts instead of the weak lugs but I'm not sure I'm up for adapting brand new machines just so they actually work!
Not sure what to do now.