Aibu - 3 year old fell whilst alone in garden

[Za1ny]

My 3 year old fell in her great grandmother's garden today. She was there unsupervised and has a huge bump and it's all grazed and looks awful. She's scraped her knees and was very upset about the whole thing saying that they (grandmother and whoever else was there) left her alone and shut the door because they were BUSY

WTF

I AM FUMING

Why the fuck ask to see my child if you can't fucking look after her. I am even angrier as my daughter was left alone and hurt as no one heard her and they shut the fucking door so she couldn't get back in.

I had a go at my ex but he wasn't there in the house at the time but he was making excuses.

She usually spends time with them on Sunday's, aibu if i stop contact (for a while) as I'm furious.

I cant communicate with ggmother as I don't speak her language.

When my daughter said that she was in the garden alone with the door shut, my ex said she was right when I asked him, but he hasn't given any explanation as to why the door was shut.

With regard to the 'shit' it's not actual dog shit but they have this massive iron tool with wheels I can't explain it properly as I don't know what the actual fuck it is but it's been there for years

Are they neglectful in general or was it just this once?

What would happen if you told your ex that it's less the bruise, but his DD got frightened she couldn't see/ reach anyone?