stephan1000 wrote:I have a 5 year UK visa (multi entry) and recently lost contact with the original visa sponsor (general tourist).
I am a bit worried that he could have withdrawn sponsorship and I need to travel urgently next week to UK.
Can the sponsor stop me from coming somehow ?
What type of sponsorship was the sponsor providing when you applied for the visa?
It wouldn't really be up to the sponsor to stop you from visiting the UK, more to the point would be what the immigration officer believes when you arrive. As they normally do, when questioning you on arrival ask how you will be supporting yourself during your stay and you can answer those questions and provide evidence to support your claims if requested, then I see no issue.
Sponsorship for a visit, is not something that is mandatory, as there are many who support themselves during visits to the UK and have clear travel plans with documentation to support this and that they will return at the end of the visit. You may however need to explain that for your previous visit when you obtained your visa you had a sponsor, but that you will be supporting yourself this time around. Here I'm assuming you've travelled on this 5 year visa before and that this isn't the first time you are travelling on it.