Why is my Brand or Campaign taking so long?
The CTIA is the organization which handles all of the brand verification and campaign approvals. Sometimes the brand vetting/verification can be instantaneous and sometimes it can take several days, up to a few weeks. The campaign review takes even longer, up to 4 to 6 weeks. At the moment, there is nothing we can do to speed up the process.
For more information about the why, you can visit their page on fighting spam texts.