wow yeah, this all sounds kinda fishy. sites like paypal shouldnt be asking you to enter bank account information. there are actually a couple banks now having troubles with scaming. people are getting emails with a link to "supposedly" their bank to enter account info. it turns out that these links are to a site that people have created to look exacly like the real bank site, and there just stealing all your info. this kinda sounds like this. maybe contact paypal and ask them about all this.