Hi Winner!
I don't understand why she needs to give fingerprint. if she can sign the papers, then fingerprint is not needed I think.
she doesn't need to go to manila to submit her documents. she can call the CAVA(Courier Assisted Visa Application) centre to arrange pick-up of her docs from her hometown. That's the requirement of British Embassy - to call CAVA & get reference number. They do not accept application without having reviewed by cava. IF she lacks documents, cava will return the whole docs to her. then she has to supply the needed docs & has to pay again the airfreight charge.
But anyway, she still needs to go to manila for her interview at the embassy. She should not hire an agent. the agent might fool her & just get money from her but doing nothing. that's so common in manila.

But if she has already applied, failed, given another chance to submit other additional docs then it's right that she has to go directly to the embassy.

Have you tried to look at this website: www.british-filipino.com. that site is very helpful.
regards...