Wrong bill from itunes

Hello,

I've got a billing from itunes THB 139.00 on May 27, 2019

I was wondering where are they from? I didn't dowloaded or subscribed anything except my icloud

I searched on your website about this problem : https://support.apple.com/en-us/HT201382

and I try to sort out but there's no information about my purchase history or subscription.

I already check my purchase history and subscription in the app store and itunes store.

I don't know how to get refund.

Thank You.