Join Date: Jul 2007
Location: New Zealand
Or insist that they remove it and weld the casing? I think aluminium welding would be an acceptable repair on a car of reasonable age/mileage.
Whatever you do, I think you should give them a chance to rectify their work as they see fit, AND ALSO establish that it isn't a new and unrelated problem, which is always quite a possibility and must be disproven before there is any obligation to rectify.
For £500 though, I'm sure you have some consumer rights - good luck. That's almost the value of some GTVs on offer in England!
'00 GTV V6, '08 FIAT 500, shell and parts for a '71 FIAT 850 Coupe