My question involves small claims court in the state of: Florida

The circuit Judge has decided to hold "evidentiary hearing" on my request to vacate a small claims default judgment entered against me -- due to lack of service (the plaintiff's CORRUPTED process server never served me with anything, although they claim they did)

The judge has sent the letter to the plaintiff's attorney and he requested that the process server be present for that hearing.

My question is, what does normally happen at this type of hearing? What specifically is "evidentiary hearing" particularly in relation to my claim of lack of service; is there anything I can do to provide evidence that I was not served papers (perhaps a sworn affidavit?) as the plaintiff's process server claims? Does plaintiff's process server usually shows up at these anyway (if he/she doesn't I suspect I will be granted my motion)?

Thanks!