Hello Mamaison3699,
Have you had a chance to view the detailed billing? You should be able view those details via your My Account --> View & Manage Bill. From there, you should be able to Save and/or Print a PDF copy of your bill. Alternatively, you should also be able to access those call details by clicking on Usage summary. It should list the source of the charge.
You should note these forums are community-driven and not intended as a venue for customer services. We do not have access to customers' accounts so we would not be know the reason for a particular charge. If you would like to discuss your bill, you would need to contact customer service. In addition, they can also be contacted via Live Chat, Facebook, or Twitter. Those methods can be accessed via the contact page posted above.
Hope this helps 😀
Cheers
