Re:
Cheers chaps, clearly this is karma for nabbing it 'outside the Bay'!!
I had no idea and the seller claims not to have known either (he isn't a bike guy, so plausible). He had a number of other offers so isn't in the mood to bargain around a partial refund.
What to do, I wonder..? It's a frame I'm not likely to find again in a hurry, at a price I can afford.
Caustic? Protect the paint somehow? Is there any way of not ruining the paint?
The 'seatpost guy'?
Hacksaw technique?
Ream out at a machine shop?
This joins : a Hardisty mtb ... Yates road ... Fuquay mtb all with stuck seatposts! I need to find a technique that works.
I should add that none of these happened on my watch.