Hi guys!
I too want similar info.

Fortunately, I am now in UK. But if my wife has to sponsor me and my son is it better to have the visit visa at the airport? or is it better to get the 6 months multiple entry visa from London? This is because, due to some technical
reasons, the visa office has issued visa only for my wife and the sponsor is assuring that once we come into the country with the visit visa issued at the airport, they will sort it out. Is it true?