Tribunal win. What next?

Hello.

I won my tribunal on the 2nd of February  for both mobility enhanced and daily living standard rate, or vice versa. And i would be backdated from late march 2022. I had a phone call on the 6th of February asking if I had been to prison, hospital or abroad. Then I was informed payment would be made in 3-5 working days. I'm more confused about the days to be honest. It's Tuesday today so is today the day I'm due the payment or would it be Wednesday, or Thursday. The chap on the phone seemed quite blunt actually, almost like he was annoyed I was receiving the benefit, which I obviously just brushed off. They don't give a lot away, I was going to ring them but I don't want to come across as a nag 😁. 

Has anyone's ever been later after they had been told a specific date? Or am I just jumping the gun a little to soon.

Thank you 😊