Yep you can. At least you used to be able to cause I did. I used to get both my fortnightly payemtns on the same day on the same week. So one big pay and that had to last 2 weeks and it sucked (single mum, studying not working, expensive rent meant all my money was gone so quick and still had to try and live the next week)

They said they could make it so that i got one payment each week which made it easier and asked what day suited best, so yep, once upon a time you could, i'd assume you still can now!