Hi Gullu,
"Global Visas" is a migration agency based in UK but they have some overseas offices (in Cape Town, Dubai, US). You can have a look on here: facebook.com/pages/Complain-Global-Visas-now-IXP-Fraud-Case/599964250045665
They took money from clients and changed the name of the company.
I hope this information helps you.
Cheers,
Ash