Personal hotspot using too much data under "other devices"
Hello, I am using personal hotspot on my iphone to give my macbook air an internet connection, so I can work. I am traveling overseas and have been using an e-sim (its not exactly cheap so thats why im worrying!). My data usage from only one morning is about 4 GB, without using my phone at all, I was only connected to my macbook which according to the cellular data usage, was only about 455 MB. Why is this happening? these are my only two mac products and i set up a password, so no other device or person would have been able to connect.
Please help.
Thank you very much!
iPhone 14 Pro, iOS 17