Eu sou um cidadão britânico, mas meus filhos não são (idades 10 e 12). Como faço para obter um visto para eles visitarem o Reino Unido?

Sou cidadão britânico, mas nasci na África do Sul (recebi a cidadania britânica porque meu pai é da Inglaterra). Meus filhos (de 10 e 12 anos) também nasceram na África do Sul. Queremos passar o Natal com nossa família inglesa este ano, mas não consigo descobrir como obter vistos de visitantes do Reino Unido para meus filhos. Quase tudo no formulário de solicitação de visto on-line é irrelevante (ou seja, como eles são crianças, não estão empregados e não precisam provar sua renda, já que nós - seus pais - vamos pagar pela viagem). Passei horas no site oficial, mas ainda não consigo descobrir qual o caminho a seguir ...

Acabei de experimentar este sistema on-line e, embora algumas das perguntas sejam um pouco fora do alcance de uma criança, se você as responder de uma maneira simples sem tentar ler muito sobre isso, você acabará sendo apontado para perguntas e respostas que faz sentido. Não fui além do que demonstrarei abaixo - MAS acho que o aplicativo on-line funcionará bem.

Aqui é onde você se aplica: Visto on - line para visitantes de curta duração no Reino Unido

Apenas continue - lembre-se de que você está respondendo pela criança e não por si mesmo, e que está pagando por tudo.

Personal information
Given names mickey 
Family name mouse 
Residential address 1 bundaberg way
capetown
South Africa

How many days, weeks, months or years have you lived at this address? 5 Years 
What is the ownership status of your home? I live with my family Change
Living at your home address
What is your gender, as shown in your passport or travel document? Male 
What is your relationship status? Single 
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Country of nationality South Africa 
Date of birth 21 August 2002 
Place of birth capetown 
Country of birth South Africa 
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Passport details
Passport number or travel document reference number a31987654 
Place of issue capetown 
Issue date 1 April 2015 
Expiry date 31 March 2020 
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Personal information
Do you have a national identity card? No 
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Employment
What is your employment status? A student 
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Income and expenditure
Do you have another income or any savings? I do not have any other income or savings
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How much money are you planning to spend on your visit to the UK? 2000.00 GBP Change

About the cost of your visit
What is the total amount of money you spend each month? 500.00 GBP Change
About your financial situation
Will anyone be paying towards the cost of your visit? Yes Change
Paying for your visit
Who is paying towards the cost of your visit? 
Someone I know (for example, family or friend) 
Name Daddy mouse 
Address 1 bundaberg way
capetown
South Africa
How much money will they be paying towards your visit? 2000.00 GBP 
Why are they helping to pay for your visit? they are my father Change
Help towards the cost of your visit
Add more help towards the cost of your visit Add
Travel information
Date you will arrive in the UK 15 December 2018 
Date you will leave the UK 15 January 2019 
Calculated duration of visit 1 month ChangeYour visit to the UK
English language
We may have to talk to you about your application. Which language would you prefer to use? English 
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Travel information
What is the main reason for your visit to the UK? Tourism, including visiting family and friends Change
Main reason for your visit
What is the main reason for your holiday visit to the UK? Visiting family Change
Main reason for your holiday visit
Give details of the main purpose of your visit and anything else you plan to do on your trip. See tourist and short stays for more information.
visit family Change

Your activities
Dependant details
Does anyone rely on you for financial support?
Include both those travelling with you and those who are not. No 
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Parent details
What is this person's relationship to you? Father 
Given names daddy Family name mouse
Date of birth 18 December 1982 
Country of nationality British Citizen 
Have they always had the same nationality? Yes Change

Give details about your first parent
What is this person's relationship to you? 
Mother Given names minnie Family name mouse 
Date of birth 15 June 1982 
Country of nationality South Africa 
Have they always had the same nationality? Yes Change
Give details about another parent

Child traveller
How many adults do you want to list on your visa? 1 
ChangeAdults travelling with you

Crianças cujos avós são / eram cidadãos britânicos do Reino Unido podem obter um passaporte britânico. Então não é necessário visto