Many phishing gangs exploit the readiness of the human eye to see what it wants to see rather than what is actually there.
For instance, in this old Paypal phish the scammers have registered a site that, to a quick glance, looks very like the name of the payment company.
Most phish fall down on one or more of these criteria. If you are suspicious contact your bank directly.
(Image credit: SonicWall)