My guess is that the ECO wants to see strong ties to Pinas to be sure she will return.
Is she employed?
What evidence did she submit that could convince the ECO that she has more reasons to return home than stay in Phils?
What was the requested duration? Did she show sufficient funds to cover?
There's no appeals process for her, but before another application is made you both need to fully understand what the ECO is looking for, and how to provide that convincing evidence.
To be honest, the visit visa is the most tricky.
