Apple i tunes

Hello, From 22.01.2022 it started to billed me 6.99 and 5.99 usd few times. I haven’t purchased anything and I haven’t used itunes. I’m haven’t buy any music or films. It’s very strange and I tried everything to cover what is happening. Please give me instructions how to solve this problem because it’s not stopped and every few days my balance is down I don’t know how it’s happening.