There is a purchase on my mobile bill, but I don't know what it is and I didn't buy it. I think there is another person can use my phone number. I want to cancel this purchase from my bill because the price is so high. How can I remove the purchase from my bill?
If there is an unauthorized purchase on your account I would suggest you call customer service immediately. You could be a victim of fraud. In the mean time you should change the password to your account.
You could reach out to customer service through any of the available methods listed here.
Can you give us more details about those charges and how they seem to have been made? The time and date for example?
Is your phone number associated with any Google accounts? What are those charges for also?
Let us know and we will reassess accordingly.
If you need immediate assistance, please reach out to customer service here.