Just looking at Free Now's Christmas wage payment schedule. It seems that we get paid twice for jobs completed on Dec 30 and Dec 31 i.e. on 2nd Jan and 7th Jan:
https://free-now.com/ie/xmas-payment-scheduleDecember Payment schedule
The weekly statement schedule through December and the start of January is as follows:
Statement on the 17th December for work completed on 9th - 15th December (incl. Scrubs and extras paid for the same period)
Statement on the 23rd December for work completed between 16th - 22nd of December (incl. Scrubs and extras paid from 16th - 19th of December)
Statement on the 2nd of January for the work completed between 23rd - 31st of December (No Scrubs)
Statement on 7th of January for the work you completed between 30th December - 5th January (incl. Scrubs and extras paid from 20th December - 5th January)