It Permits a Person to travel to the State during the dates stated on the visa.
It does not guarantee entry to the State. An Immigration Officer at the Port of
Entry has the authority to grant or deny admission, and to decide on the
duration a person may remain in the State.
Visa is one of the most well-known brands in the UK; it sponsors significant sporting events, it regularly runs big advertising campaigns, and many (if not most) people will have used a card featuring its logo. But although Visa is one of the giants of the payment industry, few people know how or why it was established.