I just got off the phone with a helpful support tech. It turns out two call over the past two days were to Singapore at $3.00 a minute. The number was embedded into a Webex Join by Phone causing the $123.00 in charges. Not a tmobile issue - a user error and no 1-800 number to join calls that fail over webex. Watch your numbers when clicking on them.
You are right I checked Contact Us and the number is listed. I found the same info on reddit after searching the number. It's weird, I called customer service and there is no issues with the account. Ghost in the machine spam???Oddly enough I received another one today a few minutes ago. There is no way to block the number (456)
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