In the UK (as I understand it) you might become liable for the costs of replacing you until the end of your notice period, probably because of "breach of contra

In the UK (as I understand it) you might become liable for the costs of replacing you until the end of your notice period, probably because of "breach of contract". But the business would have to be pretty shitty to do this and probably willing to lose all of that money again in legal fees. Mostly they would probably on refuse to give you a reference.