Vauxhall Corsa head gasket failure - what are my options?

The head gasket blew on my Vauxhall Corsa back in February, but now I think it has gone again. Or at least was never fixed properly in the first place. How long do you think a replacement head gasket should last? Do you think I have a case against the garage who fixed it?
If the block or the head were damaged then it could be that a permanent repair was not possible and you cannot blame the repair garage for that. See what the garage says.
Answered by Honest John on

Ask Honest John