MIL thoughts?

My MIL is doing us a huge favour and watching my daughter one day a week whilst I'm at work.

I feel awful complaining because it's really helping us financially but I'm having issues with how she looks after my daughter.

When I first went back I'd given her a rundown of our normal day, and asked that she sticks to it as close as possible.

We feed her breakfast at home, then drop her off at 8am. I asked that she feeds her a bottle of expressed breastmilk at around 10:30-11 and pop her down for a nap. When she wakes feed her lunch (which I supply) and then have a snack (also supplied) about 4pm. And I pick her up at 4:30-5pm so we do tea at home.

For the last few weeks she said to me that she's refusing the bottle so isn't bothering to give it to her. To which I reply I would still like it to be offered, obviously don't force it but offer. And that she is also refusing to sleep. Which is unusually because my other work days she's in daycare and drinks, sleeps and eats.

I finished work early so dropped in at 4 to pick her up. My daughter is running around with a sippy cup of milk (not the bottle is packed) and I'm told she has only just had lunch.

I asked why she is only having milk now and not in the morning before her nap, and I'm told she isn't home in the morning and has been taking my daughter out to my MIL's friends. She also tells me that she's using the sippy cup because they're designed to start weaning which I should be trying to do.

I don't know what to do, because it is a huge help. But I feel like she's not listening to our parenting choices.