Calls show up in account that I didn't make
Have been checking my call history online and seeing charges for calls I didn't make. It's always the same number. I checked my phone's call history and none of these calls appear on my phone. One call was for over 10 minutes. I tried calling the number, (edited per community guidelines), from another phone. I have done it several times, and always the same response: "This call cannot be completed. Please try again later." It lasts 2 seconds. How is it possible then for me to call it for 10 minutes?
I have called customer service three times, and they don't know what is causing it. Today customer service told me they would block it from happening again. I don't know how they can do that since there is only an option to block incoming calls, not outgoing calls. Since the time I hung up with customer service today I see 3 more calls from my phone to that phone number. These calls also do not show up in my call history on phone.
One thing I tried was changing my number. It made no difference. There have been 12 calls to that number since I changed my number.
In case you are wondering if it's an app on my phone, I have never installed any apps other that what are available at Google play.