So confusing! TIER 5 Glasgow

[sofisergi]

Dear all,
I am desperate. I am a Russian citizen living in Itay since I was little but never asked for EU's citizenship. I was invited to attend a Spring Week in Glasgow (an internship at an investment bank) that lasts 3 days but the bank did not give me a certificate of sponsorship and told me that I am on my own about visa issue.
I am really trying to understand which kind of visa should I ask for and I was suggested TIER 5 (temporary worker) as an unpaid internship is still a job. But when the online procedure asks me for a sub-type of visa (charity worker, creative and sportpeople, government authorized exchange, youth mobility scheme) I am so confused because it's not really a charity work. So what should I do ?
I really pray for someone to help me with this. I really care about this internship but nobody receives calls nor emails about this circumstances.
Thank you for your time!
Sofia

[The Station Agent]

Internship visas like this would have to be supported by BUNAC, I think. They are an organisation that deals with international internship visas.

[welshgirl]

Why dont you just try for an ordinary visitor visa?