read the requirements here http://www.ukba.homeoffice.gov.uk/vi...ily/documents/
They advise that you do not make any payments for accommodation, travel and so on until you have received your visa.
The supporting documents they suggest are:-
A planned itinerary, if you have one
This could include:
- bookings or tickets for any excursions, trips and outings
- email conversations about any excursions, trips and outings
- travel agent bookings
Evidence and supporting letter from your family member in the UK that you intend to visit:
If you are visiting a family member, you might want to include a letter of invitation from them as well as their financial documents, as outlined in the ‘Information about your finances and employment’ section.
You should also consider supplying evidence of their immigration status in the UK. This could be copies of:
- bio-data pages from their passport
- a valid visa or immigration stamp from their passport
- a Home Office letter confirming permission to stay in the UK
