My parents get notifications whenever i factime or call someone?

When I'm connected to my Wi-Fi and i call somebody on my iPhone 5c my parents weirdly get notifications saying i face timed someone, i have virgin media. So when i connect to my neighbours Wi-Fi which is sky they get it as well somehow. Well i don't know my neighbour just told my mum i was face timing someone. They don't know who but they know i'm. Please help I think they have done something to my phone

There are ways and there are WAYS to check on someone… Too many different ways for a simple answer here. Check with the service provider to see if there's a way to block whatever is spying on you.

Either you have some monitoring software on your phone that raises the alarm, or you Apple/Facetime account has some monitoring or parental guard on it. Who set up the account your are using?

Try installing Skype and use that instead of Facetime.

Parents are allowed to track their kids.
maybe you should just not do things you aren't supposed to?