Maurizio
Dont try and buck the system.... dont try and apply for a visitor visa for your filipina... they are rarely granted and anyway you will only make it harder for yourself to get her a spouse visa or fiance visa.... and you dont make clear your own immigration status in the UK.
Are you an Italian National or a British National also if you are here on EEC work criteria... but a UK Resident do you hold a British Passport if so you will need to deal with the British Embassy in Ayala Avenue its the L.V. Locsin building 15th floor.
Listen to advice given by Forum Admin and others who have been through this........the UK ECO's can be awkward if you try and buck the system.
Follow the procedure outlined in my reply to your personal message.
best of luck
