Mate, that's harsh and it's up to you but if it's just one cylinder it's really only worth about £250 less than it was when it was running fine to someone who's willing to rip it down themselves so don't let it go for something stupid just 'cause you're angry, annoyed, ferked off etc.

I'll wager the customery 50p a bit of ring left floating around in the crankcase got sucked up, as for £90 labour they did not take the crank out and check everything.
Andy did the same trick, spun a ring, didn't take the crank out, chucked it back togeather with another cylinder and siezed again about 1/2 an hour later.

When I took mine to Apex ages ago Garry didn't quite insist on taking the crank out but he did advise it fairly strongly as a tonne of chrome was missing from the bore. Chrome flakes knacker bearing as well as causing seizures like bit's of ring do
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