In order to protect Burst SMS and its clients accounts from fraudulent use we limit all accounts to $200 credit until they have been approved.
You will see on the ADD CREDIT window just below the Credit Amount drop down an INCREASE LIMIT button. This will present an application form for you to fill out for us to approve.
Approvals will only take a few minutes during normal business hours. If we have any doubts about your application, we will call you to clarify.