I get mine weekly but there was no issue got it Monday like usual x
Have you looked on the HMRC website/ App it states when next payment will come etc
Depends on the date of your payment. During public holidays like Xmas it could have been paid in earlier so if then delays it in January -possibly
Could the dad have claimed for them also? I've seen it a few times that if the other parent puts a claim in that they won't pay it until it's been investigated as only 1 person cam claim it.