Hi

I could really use some advice on how say to my friend who has started to push the limits.

It started as an emergency back up. I would walk her child to the bus stop or she would drop her child and go while i was there already. Once a month or less.
This year she has arranged her schedule so she can finish early and started dropping her child at my house - not coming in just drop and drive off. It is 40 minutes before the bus is even due and 30 minutes before my paying before care arrive! It is also 2 - 4 days a week!

It is obvious she should pay to me but how do I say it??

Thank you!