If you did more than 4.5 hours driving you’ll get an infringement for exceeding 4.5 hours driving time without a 45 minute break.
As said split driving breaks have to be 15 minutes then 30 minutes and in that order.
edit: See if this thread helps.
viewtopic.php?f=5&t=123738&p=1924193#p1924193
Sent from my mobile.