Good day @falcios,
Thank you for your post! It's very important to understand the charges billed to your invoice.
You can find the details of the picture and video messaging (MMS) rates, here.
Make sure you click on the "RATES" tab to see the Video & Picture Messaging Pricing (Pay-Per-Use) per Recipient:

If you would like us to review your current plan or messaging add-on, please send us a private message to @CommunityHelps so we can assist you further.
For information on how to PM, click here. 😉
Hope this helps!
RogersMaude