7. How credits are deducted per message?

It’s based on the text length, i.e. the number of characters in the text. If its 160 characters it will consume 1 SMS credit and so on.

Important Announcement!

URGENT! Please register the 10-digit business phone number (e.g. 555-555-5555) that your organization uses to send texts to consumers in the U.S. Failure to register may cause heavy penalties and disruption to all your text messaging communications.