NBSTSA does not refund processing fees for ineligible candidates. Once approved, NBSTSA provides candidates with an Authorization to Test number (ATT), and both the phone number and web address to contact the testing agency to schedule the test.
Variations in the schedule are determined by the court after a hearing which can be requested by the defendants attorney. The amount of bail depends on a number of factors including the nature and seriousness of the offense, the defendants prior record, his likeliness to appear and general background among others.
One one case, as you've noted, there is $30,000 bail set, but on another case, likely because there is a probation violation, or the type of case makes it ineligible for bail, there is no bail set. No bail means that the person cannot be bailed out of jail until they see a judge.