We pay in advance so for example this month we’ll get sent February’s invoice (around the 25th of the month) and have to pay it by the 31st Jan. Our daughter started on the last day of Feb last year so that one day just got tagged onto our March bill that we paid when she started. I would imagine though that if she’d started closer to the beginning of Feb we’d have had two bills in Feb to pay
I get the invoices for the next month around the 15th, but I don't have to pay until the first working day of the month. For example I got Feb invoice already on the 15th January, and have until 3rd Feb to pay them.
No, we don’t pay it in advance too, we will pay feb after feb is done