I had a similar issue last year with a cunt up in navan, the fare was €100 and the guards weren't up to speed on working people getting robbed, inanyways I got his name, phone No. and address and after a day or two " I'll have it tomorrow then next week I got pissed off so I decided to find the cunt on social media.
I ended up ringing his employer and telling his boss he used him and company as a character reference and if I ever needed anything I'd get a good discount from them.
I got paid the next day.