How do I purchase more text credits?

How do I purchase more text credits?

First log into your account and then click on "Manage Account." On the left hand side click on purchase text credits.

Note: Text Credits are used for sending text messages and mobile keyword sign up.

If you regularly require additional Text Credits, you may want to consider upgrading your monthly plan to a plan with higher number of included Text Credits.
Please choose a block of additional text credits, which will be added to your existing text credits. All unused credits at the end of the month are carried forward.