If you have questions or need help during the application process, please contact our Child Support Program at (305) 530-2600. Need help filling out a common child support form?We have videos to help! You can also call our Customer Contact Center, Monday through Friday from AM to PM at (305) 530-2600. SOFIA (State Of Florida Interactive Access) was created to allow you to electronically complete court documents using easy to follow interviews. Please complete the online sign up form. This will allow us to begin providing you services more quickly. If you do not receive public assistance, you need to complete an application for services. We provide comprehensive social services to individuals and families over the course of the full lifetime spectrum, from before birth to the elderly. Supplemental Petition for Modification of Child Support.