Hello PetenClaire,
When you're ready to make a visa application as fiancee you must complete this online.
As a guide its often helpful to download and print the application forms so as to get a better idea of the specific questions that need to be answered and the documents that will be needed.
The forms you'll need are:-
VAF4A - Family Settlement Application Form
Appendix 2 - Financial Requirement Form
If the father of your daughter is a British Citizen then your daughter will most likely be eligible for a British Passport and as such will not require a visa. In this case you should both prepare to apply for a British Passport for her.
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You'll need to make arrangements to meet the English language requirement
Additionally you'll need to meet the requirement for Tuberculosis testing in the Philippines
Please feel free to ask as many questions as you need.