Well I've just had a letter in with the final price....
just to recap.........
quoted £350 - £450 dependant on chassis no.
after work completed, presented with a bill for £660.58
complained........ offered £80 off price.........
still not happy.........
today letter with bill for £295.74

me a happy bunny. Just goes to show it is worth complaining politely hehehehe
It also beats me how they can charge the original price and then be able to discount it so much
